274 terms · A–Z

The glossary.

Plain-English definitions of the words used inside the catalogue, the guides and the scene generally. Materials, practices, safety language and roles, honestly defined for British grown-ups.

The BondageBox glossary is the UK's most considered plain-English reference for the terminology used in BDSM, bondage and sex-toy retail, 274 terms covering materials (platinum silicone, borosilicate glass, surgical steel, TPE, latex, phthalates), practices (shibari, kinbaku, edge play, sensation play, aftercare), safety frameworks (SSC, RACK, safeword), roles (Dom, sub, switch, top, bottom), and product types. UK-specific entries cite ISO 10993, AVMS Regulations 2020 and R v Brown 1993 where regulation shapes the practice. Every guide on the site auto-links to the relevant entry on first mention.

#.

24/7 dynamic aka TPE (Total Power Exchange): A power-exchange dynamic that extends beyond scenes into everyday life: the submissive's role applies continuously rather than only during play. Requires substantial trust, communication and explicit boundaries; revocable consent still applies at all times.
316L surgical stainless steel: The same alloy used for orthopaedic implants — non-porous, indestructible, holds temperature. Heavy, which is the appeal in steel toys.

A.

A-spot aka anterior fornix: A sensitive zone in the anterior fornix at the deepest reach of the vagina, beyond the G-spot. Requires a longer toy or position to access; some users report distinct deeper orgasms from A-spot stimulation. Less universally responsive than the G-spot.
ABS plastic aka acrylonitrile butadiene styrene: A hard, non-porous, body-safe thermoplastic used for vibrator housings, control handles and the rigid sections of two-part toys. The same plastic used in Lego and medical devices. Safe uncoated; the warning sign is a "soft-touch" or painted finish over the core.
Acrylic: A clear hard plastic used in specialty toys, chastity devices, paddles and bondage hardware. Non-porous and body-safe in its raw form; the clear / coloured aesthetic is the appeal. Less premium than borosilicate glass and lighter than steel.
Aftercare: The deliberate care taken between partners after a BDSM scene — water, blanket, conversation, time. Not optional; a structural part of the practice rather than a courtesy.
Age play: Roleplay involving age dynamics between consenting adults: most commonly Little/Caregiver (DDLG/MDLG) but also schoolgirl/teacher, etc. Practised exclusively between adults; the regression or roleplay framework is the dynamic, not a literal age claim.
Air-pulse toy aka sonic vibrator, suction toy: A category of clitoral stimulator using air pressure pulses rather than direct vibration. The original Womanizer popularised the format; Satisfyer and Lelo Sila are the major competitors. Distinct sensation profile; often produces orgasm faster for users it works for.
Anal beads: A graduated string of body-safe spheres designed for anal insertion, typically with a retrieval ring. The pleasure comes from inserting and (especially) removing the beads slowly.
Anal douche aka enema bulb: A small squeezable bulb with a smooth nozzle, used to rinse the rectum with plain warm water before anal play. Optional, not required. £8-15 for a basic silicone bulb; never use soap, only water.
Anal douching: Rinsing the rectum with plain warm water before anal play for additional cleanliness. Optional, not required; a normal bowel movement an hour or two before play handles 95% of the concern. Never use soap; only plain warm water.
Anal hook: A curved stainless-steel hook with a ball end, inserted anally with the curve exiting between the cheeks for tie-off to a wrist or hair binding. Predicament bondage staple; specialist gear with a specific use case.
Anal sphincter: Two ring muscles at the anus: the external (under voluntary control) and the internal (autonomic, controlled by relaxation). Insertion against a tense internal sphincter causes most beginner anal pain; patience and lube are the fix.
Anal training: The progressive practice of working through increasing toy sizes over weeks or months to comfortably accommodate larger insertables. Genuinely effective when paced slowly; counterproductive when rushed, which causes microtears.
Anal training kit: A set of three to five plugs in graduating sizes (typically 0.8 / 1.0 / 1.2 / 1.4 / 1.6 inches), used over weeks to comfortably progress to larger sizes. Each plug is worn for repeated sessions before moving to the next.
Anus: The external opening of the digestive tract. Surrounded by two ring muscles (external and internal anal sphincter) and dense nerve endings. The entry point for all anal play; relaxation of the internal sphincter is the key variable in pain-free penetration.
App-controlled toy aka smart sex toy: Any sex toy controlled via a smartphone app over Bluetooth (in-room) or wifi (anywhere). The Lovense and We-Vibe ranges dominate the UK market. Killer use case: long-distance partner control.

B.

BDSM: Umbrella initialism for Bondage and Discipline, Dominance and Submission, Sadism and Masochism. Describes a vocabulary of consensual practices, not a checklist; almost no practitioner does all of it.
Ben Wa balls aka Pelvic floor trainers: Weighted spheres held inside the vagina that strengthen the pelvic floor through resistance. Modern smart trainers add app-based feedback; traditional balls are smaller and uncoated.
Blindfold: A sensory-deprivation accessory worn over the eyes. Removing sight intensifies every other sensation — the most accessible "first piece of bondage gear" for couples beginning to explore.
Blowjob aka fellatio, oral sex on a penis: Oral sex performed on a penis. Wide technique variation; the consistent recommendation is hand-at-base, mouth-on-head, sustained rhythm, not deep-throating as default. The frenulum is the primary sensory target.
Body worship: Reverent attention to specific body parts of a partner (feet, hands, breasts, glutes) as a form of devotion or sub/dom dynamic. Often non-genital; the focused attention is the framework, not the build-up to something else.
Body-safe: An unregulated marketing term that should mean: non-porous, free of phthalates and BPA, and made of one of four genuinely safe materials (silicone, glass, surgical steel, ABS plastic).
Bondage: The umbrella term for restraint-based play. Covers cuffs, rope, tape, collars, harnesses and any other equipment that restricts movement consensually. The "B" of BDSM. Wide spectrum from soft scarves to advanced suspension.
Bondage bench: A padded bench, often with built-in cuff anchor points, designed for partnered scene work. Common configurations include spanking bench (low, forearms-and-knees position) and play bench (height-adjustable, multiple position options).
Bondage rope: Rope sold specifically for bondage / shibari use, typically in 6mm-8mm diameter and 7-8m lengths. Cotton (beginner), jute and hemp (intermediate / advanced) are the body-safe options. £15-£25 per length.
Bondage tape: A self-adhering PVC strip that sticks only to itself — never to skin or hair. The beginner-friendliest restraint: cut to length with scissors, no knots needed, removes painlessly.
Borosilicate glass: Heat-tempered glass (Pyrex-equivalent) used in sex toys. Non-porous, dishwasher-safe, compatible with every lubricant, takes temperature beautifully. Drop-resistant but not unbreakable.
Bottom: The receiving partner in a scene — the one being restrained, struck, or stimulated. Distinct from "sub"; you can bottom in a scene without committing to a submissive identity outside it.
Brat: A submissive who deliberately misbehaves, teases or provokes the dominant as part of the play, inviting "correction". Brattiness is a recognised sub-style; it pairs with a dominant comfortable with playful resistance.
Brat tamer: A dominant whose style is built around handling a brat sub: firm, patient, often theatrical, sometimes physically corrective. The complement role to brat; the dynamic is collaborative even when it looks adversarial.
Breath play: Any activity restricting the submissive's breathing (choking, hood-and-bag, gas masks). Highest fatality rate of any BDSM category; we do not stock breath-play gear and do not recommend the practice in any beginner pathway.
Bull: The third-party AMAB partner in a cuckolding or stag-and-vixen dynamic; the one having sex with the primary couple's partner while the primary partner watches. Vetted carefully by all three; the dynamic falls apart with the wrong bull.
Bullet vibrator: A small cylindrical vibrator, usually 50–80 mm long, designed for clitoral or focused external use. The most common starter sex toy in the UK.
Bullwhip: A long single-tail whip (1.5m-3m) producing a sharp focused crack. Requires substantial technique to use safely; advanced-plus impact tool, almost never appropriate as a first or second impact purchase. The aesthetic is striking; the safety margin is narrow.
Butt plug aka anal plug: An insertable anal toy with a tapered tip and a flared base. The base is the safety feature — it prevents the plug from slipping past the sphincter, which is the single most common A&E reason for adult-toy attendance.

C.

Cane: A rattan or bamboo rod used in impact play (caning). Standard lengths 60-90cm; thicker canes are slower and thuddier, thinner are faster and stingier. Requires technique to use safely (avoid wrap-around, target high-fat areas); intermediate-plus tool.
Caning: Impact play with a rattan or bamboo cane. Higher intensity per stroke than paddling, with distinctive linear marks. Requires technique to avoid wrap-around and concentrated nerve impact; a step beyond beginner impact play.
Carabiner: A metal loop with a spring-loaded gate, used in bondage to connect cuffs, leashes, ropes and anchor points. The bondage-grade carabiner is rated for human weight; climbing-rated carabiners are over-spec but acceptable. Quick-release variants exist.
CBT aka cock and ball torture: A category of impact, pressure or sensation play focused on the penis and testicles. Range from light slapping to specialised hardware (ball stretchers, parachutes). High-risk if technique is wrong; firmly an intermediate-plus practice with experienced partners.
CCCC aka Caring, Communication, Consent, Caution: A four-pillar ethics framework used in some UK BDSM communities, emphasising the relational and communicative dimension alongside risk awareness. Less common than RACK or SSC; preferred in certain women-led and queer-focused circles.
CEI aka cum eating instructions: A subset of JOI where the instructions culminate in the receiver being directed to consume their own ejaculate. A specific kink with its own community; included in some JOI scripts, optional in others.
Cervix: The narrow lower end of the uterus, protruding into the upper vagina. Some users find cervical contact pleasurable (cervical orgasm); others find it sharp or uncomfortable. Position and toy length determine whether the cervix is contacted at all.
Chastity: A practice in which the submissive's sexual release is controlled by the dominant via a chastity device. Periods range from hours to months. The keyholder dynamic is the central relationship structure; trust and check-ins are critical.
Chastity device aka cock cage: A wearable cage or sleeve preventing the penis from achieving or maintaining a full erection. Worn for periods ranging from hours to months under a chastity dynamic. Materials include polycarbonate (entry-level) and 316L steel (long-term wear).
Check-in: A mid-scene verbal touchpoint where the dominant pauses to confirm the submissive's state. Often phrased as "colour?" inviting a green/yellow/red answer. Standard practice in any scene over 15-20 minutes.
Chrome-tanned leather: Leather treated with chromium salts rather than vegetable tannins. Soft, supple, the standard for most cuffs and bondage gear. Not vegan and not vegetable-tanned; check the label if either matters for your purchase.
Clit pump: A small suction cup with a pump bulb, used to increase blood flow to the clitoris and surrounding tissue for heightened sensitivity. Recreational use only; not therapeutic. Different intensity profile from clitoral-suction toys.
Clitoral hood: The fold of skin covering the external clitoris, analogous to the foreskin. Direct under-the-hood contact is more intense than over-the-hood; partner technique usually starts over-the-hood and adjusts from there.
Clitoral suction toy aka Pleasure-air, Womanizer: A vibrator that uses pulses of air rather than direct contact to stimulate the clitoris. Pioneered by Womanizer; LELO's Sona and several others now compete in the segment.
Clitoris: The primary anatomical site of pleasure in vulva-owners. Only the external glans (about the size of a pea) is visible; the internal structure extends 5 to 9cm into the body and wraps around the vaginal canal.
Cock ring aka penis ring, love ring: A ring worn at the base of the penis (and sometimes the testicles) to maintain a firmer, longer-lasting erection by restricting venous outflow. Stretchy silicone, leather snap and solid steel are the three common formats.
Collar: A neck-worn restraint or symbol — at the play end of the spectrum a leather scene collar with D-rings; at the relationship end a more discreet day-collar worn outside scenes as a sign of an ongoing D/s dynamic.
Consensual non-consent aka CNC: A negotiated scene in which the submissive consents in advance to a scene where the in-scene language is non-consensual (e.g. struggle, refusal, "no"). Heavily negotiated; safeword always overrides the in-scene roleplay. Advanced practice.
Consent: The absolute foundation of all BDSM and sex generally. Must be informed (the parties understand what is involved), enthusiastic (not reluctant or coerced), specific (consent to one act is not consent to another), and revocable at any moment via safeword or plain language.
Corpus cavernosum: The two spongy chambers running the length of the penis that fill with blood during erection. Cock rings work by gently restricting blood outflow once the chambers are full, sustaining the erection longer.
Cosplay: Sexual or sensual roleplay built around character costumes (fictional characters, fantasy archetypes, mainstream cosplay characters with erotic framing). Distinct from general roleplay by the visual and character-specific dimension.
Cotton rope: The most beginner-friendly bondage rope material. Soft against the skin, washable, holds knots well enough for foundational ties, and significantly cheaper than jute or hemp. The standard recommendation for learning shibari at home.
Cuckold aka cuck: The watching partner in a cuckolding dynamic. The role is usually adopted by an AMAB partner watching their AFAB partner with another. Voluntary, negotiated, and frequently includes humiliation play, financial-control or service dimensions.
Cuckolding: A consensual kink in which one partner watches their primary partner have sex with another person. Practised in the UK as a recognised polyamorous / open-relationship variant. The "cuck" is the watching partner; the dynamic is collaborative, not adversarial.
Cuckqueen: The gender-flipped cuckold: an AFAB partner watching their AMAB partner with another. Less common cultural visibility but a meaningful niche; same dynamic principles, same consent and negotiation standards.
Cuffs aka handcuffs, wrist cuffs, ankle cuffs: A pair of bands joined by a chain, hook or tether — used to restrain wrists or ankles. Padded leather, neoprene, faux fur and Velcro are the four common forms; medical steel handcuffs are a separate, sharper category.
Cunnilingus aka oral sex on a vulva, "going down": Oral sex performed on a vulva. Technique varies enormously; the consistent finding across studies is that rhythm-and-consistency matters more than any specific tongue movement. Combined oral + finger / toy stimulation closes the orgasm gap most reliably.
Cyberskin aka Fanta Flesh, Ultraskyn, SuperSkin: Branded names for porous TPE blends marketed for their "lifelike" skin-feel. Used in many realistic masturbators and dildos. Cannot be sterilised; requires renewing powder to prevent the surface going tacky. Not body-safe in any rigorous sense; condom-only use is the safest pattern.

D.

D-ring: A D-shaped metal ring used as a connector point on harnesses, cuffs, collars and bondage gear. The flat side allows webbing or strap to lie flush; the curved side accommodates a snap hook or carabiner without pinching.
Daddy: A caregiver-role honorific within a DDLG or similar dynamic. Not literally paternal; the term refers to the protective-and-instructive role the dominant takes. Distinct from incest-themed roleplay despite surface similarity in language.
Day collar: A subtle collar designed for daily public wear: often a fine chain, leather choker, or a discreet locked piece. Marks the dynamic without being read as kink by strangers. The submissive equivalent of a wedding ring within a power-exchange relationship.
DDLG aka Daddy Dom / Little Girl, CG/L (Caregiver/Little): A power-exchange dynamic where one partner takes a caregiver role (Daddy or Mommy) and the other adopts a "little" headspace. Not literal age play; the regression is the stress-release mechanism. Practised exclusively between consenting adults.
Dildo: A non-vibrating, insertable toy designed for vaginal or anal penetration. Modern dildos are made from platinum-cure silicone, borosilicate glass or stainless steel. Realistic, abstract and fantasy designs all coexist.
Discipline: The "D" in BDSM — agreed-upon rules, structure, and consequences within a power-exchange dynamic. Distinct from punishment per se; the framework around expectations rather than the act of correction.
Dom aka Dominant: The directing / leading partner in a power-exchange dynamic. Responsible for negotiating clearly, staying within agreed limits, and providing aftercare.
Domme aka Dominatrix: A female-identifying dominant. Often used to distinguish from the gender-neutral "dom"; the spelling carries the same meaning. Common in pro-domme contexts and feminine-presentation kink dynamics.
Dragon's tail: A single-tail impact tool with a wider flat striker at the end, producing a sharp sting without the wrap-around risk of a true single-tail. Common intermediate-tier impact tool; easier to control than a bullwhip, more intense than a flogger.
Dungeon: The play-equipment-fitted space at a play party or fetish club, or the private home equivalent. Furnished with crosses, benches, racks, suspension points and so on. The term is community jargon; the spaces themselves vary from minimalist to elaborate.
Dungeon monitor aka DM, floor monitor: A trained volunteer at a play party who watches scenes for safety issues, distress signals or rule breaches and intervenes if needed. The standard safeguard at any reputable UK play-party venue; their presence is itself a safety feature.

E.

E-stim toy: A toy delivering mild electrical pulses for stimulation, typically paired with a TENS-unit-style controller. E-stim cock rings, anal plugs and conductive pads all exist; specialist UK suppliers like ElectraStim dominate the category.
Edge play: BDSM practices considered higher-risk than typical scenes — breath play, knife play, electroplay, and fire play are common examples. Requires explicit negotiation, experience and trust.
Edging: Bringing a partner — or oneself — close to orgasm and then deliberately stopping or reducing stimulation, often repeatedly. Builds intensity; sometimes part of an orgasm-control or denial dynamic.
Electrostimulation aka e-stim: Erotic stimulation using mild electrical pulses delivered via specialised toys (TENS units, e-stim cock rings, conductive pads). Specialist niche with its own gear ecosystem; absolutely never used above the waist (cardiac risk).
EMT shears aka safety scissors, trauma shears: Flat-tipped emergency medical scissors designed to cut through fabric, rope, leather and tape without cutting the skin underneath. Non-negotiable equipment within arm's reach of any rope or tape scene; £5-8 from any first-aid supplier.
Exhibitionism: The complement of voyeurism: sexual pleasure from being watched. In the consensual / kink context: performing for a partner, attending sex-positive clubs, recording private content. The non-consensual version (flashing strangers) is a criminal offence.

F.

Faux fur: Synthetic plush fabric used as the inner lining of premium cuffs and blindfolds, providing comfort against the skin during longer wear. The aesthetic contrast with leather or PVC exterior is a defining feature of the "luxe" segment.
Faux leather aka vegan leather, PU leather: Synthetic leather (usually polyurethane) made to look and feel like real leather. Vegan, cheaper, lighter; less durable than chrome-tanned leather and prone to peeling after 2-5 years. The default in budget bondage kits.
Femdom: Female-dominated BDSM. Either a relationship dynamic or a scene style; the dominant partner is a woman. Distinct cultural conventions and aesthetics; significant overlap with the pro-domme industry in the UK.
Fetish: A specific object, body part, material or scenario that triggers strong sexual response. Distinct from kink (which is broader and often interest-based); a fetish is more specifically focused and often integral to arousal rather than optional.
Findom aka financial domination: A power-exchange dynamic centred on the submissive giving money or gifts to the dominant. Practised online far more than offline; a substantial professional niche, especially on subscription platforms. Operates strictly within consensual financial limits.
Finger vibrator: A small ring-and-bullet vibrator worn on the finger, putting the vibration source under direct manual control. Discreet, intuitive to position; popular as a starter clitoral vibrator or as an addition to manual technique.
Fingering: Manual vaginal or anal stimulation using fingers. Clean, trimmed nails (or nitrile gloves) are basic hygiene; adequate lubricant is the comfort variable. The "come-hither" curl is the standard G-spot technique; for anal play, more lube and slower pacing.
Fleshlight: A brand-name male masturbator presented in a torch-style outer case, with a soft TPE-blend internal sleeve. The category leader for premium male strokers; multiple textures and signature collaborations.
Flogger: An impact implement with multiple soft tails (leather, suede, deerskin, sometimes rubber) attached to a single handle. Produces a distributed, rhythmic sensation often described as "controlled rain".
Flogging: Impact play using a flogger (multiple soft tails). The sensation profile ranges from soft thud (heavy leather) to sharp sting (light suede), depending on the tool and technique. The standard intermediate impact category.
Food play: Erotic use of food items (chocolate sauce, whipped cream, ice, fruit). Body-friendly food only on or near genitals (sugary food can disrupt vaginal pH and cause yeast issues). The classic "strawberries and cream" cliche is the gateway; the niche scales from there.
Foot fetish aka podophilia: Sexual attraction to feet. One of the most common fetishes by self-report. Activities include foot worship, foot massage, foot job and shoe / sock-related play. Wide community and substantial commercial / professional niche.
Foot worship: The practice of reverently attending to a partner's feet (kissing, massaging, licking) within a power-exchange or fetish dynamic. Common practice in femdom and findom; the worshipful posture is the point as much as the physical act.
Forced orgasm: A scene practice in which the dominant continues stimulation past the submissive's point of voluntary orgasm, producing multiple or post-orgasm-sensitivity orgasms. Negotiated in advance; the "forced" framing is roleplay language, not literal force.
Foreskin: The retractable skin covering the glans of the penis in uncircumcised AMAB anatomy. Densely innervated; many uncircumcised users find foreskin-focused technique a meaningful sensory difference. Circumcision rates in the UK are low compared to the US.
Frenulum: The small ridge of skin on the underside of the penis where the foreskin attaches to the glans. The single most sensitive square centimetre in penile anatomy; the focus point in most effective oral technique.

G.

G-spot aka Gräfenberg spot: A sensitive zone on the front (anterior) wall of the vagina, roughly two-finger-knuckles in. Curved-tip vibrators and dildos target it; not every vulva-owner experiences distinct G-spot pleasure.
Gag aka ball gag, mouth gag: A device worn in or over the mouth to limit speech and noise. Ball, ring, bit and pacifier styles dominate; choose breathable designs and never combine with anything that restricts nasal airflow.
Glass plug: A butt plug made of borosilicate glass. Heavier than silicone, holds temperature beautifully (warm in tap water, chill in fridge), absolutely non-porous. Common in the jewel-base aesthetic category. £20-£60 entry; lifespan is decades if not dropped.
Goddess: A reverent honorific for a female dominant, common in femdom and worship-based dynamics. Carries deeper ritual / devotional framing than Mistress; popular in findom and body-worship contexts where the worshipful posture is the point.
Group sex: Sex involving more than two people. Categories include threesomes, foursomes and larger gatherings (orgies). Strong negotiation requirements; play parties and swinger meetups provide structured-context options for couples curious about it.

H.

Hair pulling: A widely-practised low-stakes element of impact-adjacent play: pulling the receiving partner's hair (always at the root, never mid-shaft) for sensation. Often the first BDSM-adjacent thing a couple tries before formal scene work.
Handjob: Manual penile stimulation performed on a partner. Lubricant transforms the experience; without it, friction is the limiting factor. Wide variation in technique (grip styles, rhythms, twist work); often paired with oral or as standalone act.
Hard limit: An activity a partner refuses outright and will not negotiate — full stop. Crossing a hard limit is a violation of consent, regardless of context or scene framing.
Hemp rope: A traditional bondage rope material with a coarser texture than jute and more "tooth" than cotton. Holds knots firmly, marks the skin distinctively, and softens with use. Common in shibari and Western bondage; conditioning with mineral oil extends its life.
Hollow strap-on: A strap-on dildo with a hollow chamber accommodating a (typically softer, smaller) penis inside, allowing partners with erectile difficulty to still penetrate. Specialist category; widely used by partners with ED, post-prostatectomy, or trans masc users.
Hood: A full-head covering — leather, latex or neoprene — used for sensory deprivation, anonymity, or as part of a fetish look. Open-mouth, open-eye, and full-coverage variants exist; airflow design is non-negotiable.
Hotwifing: A specific open-relationship variant: an AFAB partner has sex with others (with the primary AMAB partner's enthusiastic encouragement, often as an erotic dynamic). Distinct from cuckolding by the absence of the humiliation element; the framing is celebratory.
Humiliation play: Erotic humiliation as a form of psychological play. Wide spectrum from gentle teasing to explicit degradation talk. Requires careful negotiation and aftercare; the words used are pre-agreed, never improvised, and never personal.

I.

Ice play: Temperature-play subset using ice cubes for cold sensation, often alternated with warm touch for sensation contrast. Low-equipment, low-risk introduction to temperature play; works with glass and steel toys for a more sustained cold effect.
Impact play: BDSM activity involving struck contact — spanking by hand, paddles, floggers, canes, riding crops. Pain tolerance, target areas (fleshy, never spine or kidneys), and warmup are all negotiated before the first strike.
ISO 10993: The international standard for biocompatibility testing of medical devices and materials. The benchmark a body-safe sex toy material should meet; platinum-cure silicone, borosilicate glass, ABS plastic and 316L stainless steel all do. PVC, uncertified TPE and porous coatings do not.

J.

Jelly rubber: A category of soft, often phthalate-plasticised PVC sex toys. Strongly outgases when new; should not be used internally. Older and cheaper toys are more likely to be jelly.
JOI aka jerk-off instructions: A practice (often verbal, often delivered by a dominant or pro-domme over recording / livestream) where the receiver is instructed when, how and how fast to masturbate. Common in solo content and long-distance dynamics.
Jute rope: The traditional shibari rope material. Lighter and finer than hemp, with a distinctive smell and grip. The standard rope for serious shibari practitioners; mass-market kits more often use cotton or hemp.

K.

Kegel exercises: Pelvic-floor muscle contractions performed in sets, usually with weighted Kegel balls for resistance. NHS-recommended for postnatal recovery, urinary incontinence, and improved sexual function.
Kinbaku: Japanese-influenced rope bondage with explicitly sexual or psychological intent — closely related to shibari but with a more direct erotic charge.
Kink: The umbrella term for any sexual interest that falls outside conventional / "vanilla" sex. Includes BDSM but is broader: fetishes, role-play, kink-adjacent fantasies. Wide spectrum from mild (blindfolds, light spanking) to specialist niches.
Kitten play: Pet play with a cat persona. Often softer and more sensual than puppy play; gear includes cat ears, tail, collar and bell. Common entry point into pet play for AFAB submissives.

L.

Labia aka lips: The inner (labia minora) and outer (labia majora) lips of the vulva. Wide variation in size, shape and pigmentation is normal; the "matching pair" depicted in mainstream porn is the exception, not the rule.
Latex: Natural rubber, body-safe in itself but a common allergen (1–6% of UK adults). Used for clothing, condoms and some bondage tape. Outgases a slightly bitter smell that fades.
Leather paddle: A paddle with a leather or leather-covered striking surface. Wide variation: soft suede (thuddy) to stiff leather (sharper sting). The most-bought single piece of impact gear in beginner kits, after the basic spanker.
Lingam massage: The male counterpart to yoni massage: a tantric massage focused on the penis (lingam in Sanskrit) without explicit orgasm goal. Same framing principles; same professional practitioner availability in the UK tantric scene.
Little: The submissive role within a DDLG or caregiver/little dynamic. A regression to a younger headspace as a form of stress release and intimacy; not literal age play with minors (which is not legal or condoned anywhere reputable).
Lockable cuffs: Cuffs that close with a key-operated lock rather than buckle or velcro. Look impressive but cause the majority of UK bondage A&E presentations when keys are misplaced. Beginners should default to quick-release cuffs; lockable is intermediate-plus gear.
Love egg aka vibrating egg, wireless bullet: A small egg-shaped vibrator, usually inserted vaginally, controlled by a remote (wired or wireless) for hands-free vibration. Common wearable for public or partnered use; Lovense Lush is the dominant wifi-controlled version.
Lubricant aka lube: A glide product applied to the body or toys. Three families: water-based (toy-safe with everything, dries quickly), silicone-based (long-lasting, but degrades silicone toys), and hybrid (water with a small silicone tail). Latex-safe is a separate axis again.

M.

Magic wand attachment: A silicone cap that fits over a wand vibrator's head, converting it for a specific purpose (G-spot curve, prostate stimulation, penetrating sleeve). Magic Wand and Doxy use different sizing standards; check compatibility before buying.
Masochism: Deriving erotic satisfaction from receiving pain, humiliation or restraint. The "M" in BDSM. Pairs with sadism in S/M dynamics; both partners explicitly negotiate intensity and limits in advance.
Master: An honorific for a male dominant within a dynamic, typically chosen by both parties. The male counterpart to Mistress; carries the same formality conventions. Capitalised when used within the dynamic.
Masturbator aka stroker, pocket pussy: A male sex toy designed to be used solo — Tenga, Fleshlight and Kiiroo dominate the UK market. Materials range from TPE (cheaper, harder to clean) to platinum-cure silicone (premium, sterilisable).
Medical play: Roleplay using medical equipment and clinical scenarios (speculums, gloves, gowns, examinations). Aesthetic and procedural rather than literally medical; specialist gear available from UK retailers.
Mesh fabric: Open-weave fabrics (typically nylon or polyester) used in lingerie, harnesses, body suits and bondage clothing. The aesthetic balance is exposure-with-coverage; popular in queer and gym-influenced kink fashion.
Mistress: An honorific for a female dominant within a dynamic, typically chosen by both parties as a form of address. Capitalisation when written reflects the formality of the dynamic; "my Mistress" is the standard form.
Mommy: The female-presenting counterpart to Daddy within a caregiver/little dynamic. Same convention: the role is about caregiving and structure, not a literal parental claim.
Monogamish: A coined term (Dan Savage, 2011) for a primarily monogamous relationship that allows for occasional, agreed exceptions. Less structured than polyamory or swinging; the exceptions are agreed case by case rather than under a general framework.
Mons pubis aka mound of Venus: The rounded mound of fatty tissue over the pubic bone, above the vulva. The standard starting point for warm-up touch before working down to the labia and clitoris.
Mummification: Full-body wrapping in bondage tape, plastic film, latex or fabric, immobilising the submissive completely. High-intensity practice requiring temperature management, breath access and safety scissors within reach. Not a beginner activity.
Munch: A social gathering of kink-aware people in a vanilla venue (usually a pub), with no play or kink-coded clothing on display. The standard entry point into the local UK BDSM community; lower-stakes than a play party, designed for first-time attendees.
Mutual masturbation: Partners pleasuring themselves in each other's presence, with or without touching the other. Common in long-distance contexts (via video), in early-relationship encounters, and as part of voyeur / exhibitionist play.

N.

Needle play: Edge-play category using sterile single-use needles for sensation, temporary visual effect (decorative arrangements) or temporary piercing. Specialist practice requiring sterile-needle training, infection-control basics and clean-up procedure. Not a beginner activity.
Negotiation: The conversation between partners before a scene — what will and will not happen, hard limits, soft limits, safe word, aftercare. The single best predictor of whether a scene goes well.
Neoprene: A synthetic rubber widely used in fetishwear, hoods, masks and harnesses. Flexible, hypoallergenic for most users, washable. Cheaper than latex with a similar look-and-feel; the default material for puppy hoods and many bondage accessories.
Nipple clamps: Adjustable jaws that pinch the nipples — tweezer, clover, alligator and magnetic types vary in pressure and removal experience. Removal is sharper than wear; ten-minute time limit per clamp is the conservative rule.
Nipple suckers aka nipple pumps: Small suction cups that draw blood into the nipple, producing temporary enlargement and heightened sensitivity. Mechanical (twist-to-create-vacuum) or pump-bulb operated. Less intense than nipple clamps; complementary rather than substitute.
Nitrile: A synthetic rubber used in disposable gloves (replacing latex for users with latex allergies) and some condoms. The default material for medical-play roleplay gloves; hypoallergenic, oil-compatible (unlike latex), and condom-grade nitrile is FDA-approved.

O.

O-ring: A simple metal ring used as a connector in collars, harnesses, leashes and gags. The O-ring on a collar is the universal attachment point for a leash or scene tether. Material is typically nickel-plated steel or stainless steel.
Open relationship: A relationship structure where partners agree that one or both can engage in sex with others. Broad umbrella covering swinging, polyamory, monogamish arrangements, "don't ask don't tell" setups. Specifics vary enormously; the agreement is everything.
Orgasm control: Umbrella term covering edging, orgasm denial, forced orgasm, ruined orgasm and tease-and-denial. The dominant controls when, whether and how the submissive reaches orgasm. One of the most-practised power-exchange categories.
Orgasm denial: A negotiated agreement that one partner does not orgasm during a scene or for an agreed period. Often paired with edging; sometimes enforced via chastity devices.
Orgy: Group sex with four or more participants. Almost always organised within established communities (swinger clubs, kink-positive play parties) rather than spontaneously; the logistics and consent infrastructure require pre-existing context.
Owner: A dominant within a pet-play or ownership dynamic. The receiving role is "pet". Often paired with collars, leashes and specific pet personas (puppy, kitten, pony). Power-exchange runs deeper than scene-based BDSM.

P.

Paddle: A flat broad impact implement, usually leather. Delivers a deep "thud" sensation that lingers; the most forgiving impact tool for beginners after the hand.
PC muscle aka pubococcygeus muscle: The main muscle of the pelvic floor, running from the pubic bone to the coccyx. The muscle you contract when stopping a urine stream mid-flow; the target of kegel training and the contractor in pelvic orgasm.
Pegging: The practice of a person — typically a woman — wearing a strap-on dildo to anally penetrate a male partner. Stimulates the prostate; orientation-neutral act between heterosexual partners.
Pelvic floor: The sling of muscles spanning the base of the pelvis, supporting the bladder, bowel and (in AFAB anatomy) uterus. Stronger pelvic-floor muscles correlate with stronger orgasms in both anatomies; kegel exercises target this group.
Penis: The external male / AMAB genital organ. Internally, the corpus cavernosum (two spongy chambers) fills with blood during erection; externally, the glans (head), shaft, frenulum and (uncircumcised) foreskin are the primary structures of sexual sensation.
Penis pump: A cylinder-and-pump device that creates vacuum pressure around the penis, drawing blood in and producing a temporary increase in size and firmness. Used recreationally for sensation and for therapeutic erectile-dysfunction support.
Penis sleeve aka penis extender: A wearable silicone or TPE sleeve fitting over the penis, adding girth, length, or texture for partnered use. Distinct from a stroker (used solo): the sleeve is worn during penetrative sex. Common entry point for couples experimenting with size.
Perineum aka taint, gooch: The area of skin and underlying tissue between the genitals and the anus. Densely innervated and pressure-sensitive in all anatomies; the standard target for indirect prostate stimulation in AMAB users without insertion.
Pet: The submissive role within an ownership or pet-play dynamic. Often paired with a specific persona (puppy, kitten, pony) that shapes the headspace and the visual aesthetic. The pet collar and leash are the canonical markers.
Pet play: A roleplay dynamic in which the submissive adopts an animal persona (puppy, kitten, pony) with the corresponding behaviours and gear. The pet is non-verbal during scene; communication shifts to body language and pre-agreed signals.
Phthalates: Plasticisers used to soften PVC. Restricted to ≤0.1% in children's items under EU REACH but unregulated in adult novelties; should be avoided in any toy used internally.
Platinum-cure silicone: A non-porous, sterilisable, hypoallergenic silicone — the gold-standard sex-toy material. Compatible with water-based lubricant; bonds with silicone-based lube.
Play party: A private event where kink-aware people gather to socialise and play (scene). Hosted in private venues or members-only clubs; vetted attendance, explicit consent norms, and on-site dungeon monitors. Most UK cities have at least one regular play-party scene.
Pocket pussy: A compact open-sleeve masturbator, smaller and cheaper than a Fleshlight. £6-25 entry tier; usually TPE rather than silicone. The discreet-storage version of the masturbator category; travel-friendly.
Polyamory aka poly: A relationship structure built around multiple consensual romantic and sexual relationships simultaneously, with everyone's knowledge and agreement. Distinct from swinging (which is sex-focused) and from cheating (which lacks consent).
Pony play: A specialised form of pet play with an equine persona. Gear includes bit gag, hoof boots, tail plug and harness. The most equipment-heavy of the pet-play categories and the smallest community.
Posture collar: A tall, structured collar (5cm+ in height) that restricts neck movement and enforces upright posture. Visual and physical reminder of the submissive role; common in serious power-exchange dynamics. Distinct from a day collar or scene collar.
Power exchange: A consensually agreed transfer of decision-making, control or authority within a relationship or scene. Ranges from "you choose where we eat tonight" to full 24/7 dynamics.
Praise kink: The mirror opposite of humiliation play: the submissive responds to verbal praise and approval from the dominant ("good girl", "well done", "look how well you take that"). Common, often-overlooked element of many sub headspaces.
Predicament bondage: A bondage configuration where the submissive must choose between two uncomfortable positions (e.g. relax and pull on a nipple clamp, or hold a strained pose). Psychological play more than physical restraint; intermediate-plus practice.
PRICK aka Personal Responsibility, Informed, Consensual Kink: An ethics framework for BDSM emphasising informed personal responsibility from both parties. Often presented as the successor or complement to RACK; the addition is the explicit "personal responsibility" pillar.
Prostate: A walnut-sized gland located 5–7 cm inside the rectum on the front (abdominal-side) wall in male anatomy. Densely innervated; the source of the deep, distinct sensation associated with receptive anal play.
Prostate massager: A curved insertable shaped to apply pressure to the prostate gland (about 5cm inside the anus, on the anterior wall). The curve is the point; a straight toy cannot reach it. Manual versions (Aneros) from £20; motorised (Lelo, We-Vibe) £80-£180.
Puppy play: The most common form of pet play. The submissive (the "pup") plays as a dog: barks, paws, fetches, tail-wags. Gear typically includes a hood, tail, knee pads and collar. Strong subculture in the UK gay community; widely embraced across all kink-aware orientations.
PVC aka polyvinyl chloride, jelly: A plasticised plastic widely used in budget "jelly" sex toys. Porous, leaches phthalate plasticisers (endocrine disruptors), cannot be sterilised. Restricted in EU/UK children's toys; adult sex toys remain unregulated. Avoid.

R.

Rabbit vibrator aka dual-stim vibrator: A dual-stimulation vibrator with an insertable shaft (typically curved for G-spot contact) and an external arm positioned to stimulate the clitoris simultaneously. The shape was popularised by the original Rabbit Habit; now a broad category.
RACK aka Risk-Aware Consensual Kink: The modern ethical framework for BDSM: practices carry risk, both parties understand it, both consent. Acknowledges that no activity is risk-free; informed consent matters more than absolute safety.
Realistic dildo: A dildo cast or sculpted to resemble a penis — including veining, head and a flared base. The flared base is what makes it harness-compatible and (when used anally) safe.
Rectum: The final 12-15cm of the digestive tract, between the anus and the colon. Crucially, it is not straight; the curve about 5-8cm in is why longer anal toys need a slight curve to feel comfortable. The rectum has no natural stop point, which is why flared bases are mandatory.
Remote bullet: A small bullet vibrator paired with a separate remote control (RF, Bluetooth or wifi). Allows partnered control during a date or public scenario; the wearer keeps the bullet in place while the partner controls the vibration.
Restraints: Any item designed to limit a partner's movement during play — cuffs, straps, tape, rope, spreader bars and bondage frames all count. The category begins with soft Velcro and ends with full-body harnesses.
Riding crop: An impact implement borrowed from equestrian use — long shaft, small leather popper at the tip. Delivers concentrated "sting" rather than distributed thud; precise enough for targeted teasing.
Rimming aka anilingus: Oral-anal stimulation. Performed on a clean anus (shower or wipe beforehand); some practitioners prefer a dental dam for STI risk reduction. A category most beginners try later, with a partner they trust completely.
Risk assessment: The pre-scene review of what could go wrong with a planned activity: physical risks, emotional risks, equipment failure modes, escape contingencies. The mental version of a workplace risk assessment, scaled to the scene's intensity.
Roleplay: Erotic play structured around assumed identities, scenarios or relationships. Categories include occupation roleplay (doctor/patient, teacher/student), strangers, power-exchange dynamics. Costume optional; the framing is the point.
Rope bondage: Bondage using rope rather than cuffs or tape. Western rope bondage uses functional restraint patterns; shibari (Japanese rope) emphasises aesthetic and ritual. Skill-intensive category that rewards consistent practice.
Ruined orgasm: A practice where stimulation stops at the exact moment of orgasm onset, allowing the physiological release without the subjective peak. Distinct from edging (which stops before) and forced orgasm (which continues past). Part of the orgasm-control toolkit.

S.

Sadism: Deriving erotic satisfaction from inflicting pain or humiliation on a consenting partner. The "S" in BDSM. Always consensual in this context — non-consensual sadism belongs to the criminal justice system, not the kink lexicon.
Safe call: A pre-arranged check-in with a trusted person outside the scene at a specific time. If the call doesn't happen, the trusted contact escalates. Standard practice when meeting a new partner for play, especially in pro-domme or stranger-to-stranger contexts.
Safe word: A pre-agreed word — typically "red" for stop and "amber" for slow down — that overrides any role play and signals an immediate halt. Within a scene, "no" may be playful; the safe word is always literal.
Scene: A discrete, time-bounded BDSM session — negotiated start, defined activities, agreed end. "Scenes" are the unit of play; a relationship is built from many of them stitched together.
Scene collar: A collar worn only during scenes, marking the temporary headspace shift. More elaborate than a day collar (often with O-rings for leash attachment); not worn outside the dynamic. The standard collar type for scene-based (rather than relational) dynamics.
Scene contract: A written or verbal agreement covering a specific scene: activities included, safewords, aftercare needs, time limits and any specific instructions. Not legally binding; the function is mutual clarity and recall. Standard for longer or more intense scenes.
Scrotum aka testicles, balls: The skin sac containing the testicles, located below the penis. The skin is highly sensitive and temperature-responsive; the testicles inside are pressure-sensitive. Frequently a site of focused stimulation in oral sex and the target of CBT play.
Sealed hardwood: Hardwood (oak, walnut, maple) finished with a food-safe sealant such as carnauba wax or mineral oil. Used in specialist artisan dildos and paddles. Body-safe when the sealant is intact; unsealed wood is porous and not safe for insertion or skin contact.
Sensation play: BDSM activity focused on novel or intensified sensory input rather than impact or restraint — feathers, ice, wax, fur, pinwheels, temperature variation. The most accessible on-ramp into kink for vanilla couples.
Sensory deprivation: Removing or restricting sensory input (sight, sound, sometimes smell or touch) to heighten what remains. Equipment ranges from a simple blindfold to full hoods and earplugs. Heightens trust, anticipation and the impact of remaining stimulation.
Service: A dynamic where the submissive's role is to perform tasks for the dominant: domestic, sexual, ritual or all three. Often a deeper, longer-term dynamic than scene-based BDSM; the service is the relationship structure.
Service topping: When the dominant runs the scene in service of the submissive's desires rather than their own. The power dynamic looks the same from outside; the motivation is centred on the bottom's enjoyment, not the top's.
Sex doll: A full-body or half-body silicone or TPE figure designed as a sexual partner substitute. Premium silicone full-body dolls start around £1,500 and reach £5,000+; smaller half-bodies and torsos are more affordable entry points to the category.
Sex furniture: Purpose-built furniture for sex and BDSM. Ranges from soft wedges and ramps (£60-£180, change position angles) to specialist hardware (St Andrew's cross, bondage bench, sex swing). Most-bought entry is the wedge; most photographed is the cross.
Sex swing: A suspended seat or harness allowing the receiver to be supported in mid-air at any angle, with the penetrating partner free to move. Doorway-mounted models for renters; ceiling-mounted for permanent install. Genuinely changes the position vocabulary.
Sex wedge aka Liberator wedge, sex ramp: A firm foam wedge with a washable cover, placed under the hips to elevate the pelvis 20-25cm. Improves angle for penetrative sex and reduces neck strain for the giving partner in oral. The most-bought single piece of sex furniture in the UK.
Shibari: Japanese-influenced rope bondage focused on aesthetic patterns and slow tying — as much craft as kink. Often distinguished from kinbaku, its more sexual cousin.
Silicone blend aka silicone elastomer: A misleading marketing label almost always denoting TPE with a small silicone percentage added, or a silicone-coated TPE core. Loses the non-porous, sterilisable benefits of pure silicone. Buy "100% platinum-cure silicone", not blends.
Silicone-based lubricant: A long-lasting, slippery lubricant that does not dry out — ideal for shower play and anal use. Will degrade platinum-cure silicone toys; use with glass, steel or a barrier.
Silk: A natural fibre used in premium blindfolds, ties, scarves and lingerie. The most sensual fabric for sensation play; smooth, cool, and visually distinct from synthetic alternatives. Standard material for high-end "starter" gear that does not read as kink.
Sir: An honorific for a male dominant, less formal than Master and often used in shorter scene-based dynamics rather than long-term ownership. Capitalised within the dynamic; lower-stakes-feeling than the Master title for many practitioners.
Sissy: A role in feminisation play, where an AMAB submissive adopts a hyper-feminine presentation (lingerie, makeup, behaviour) at the direction of the dominant. Distinct from being trans; sissy play is a roleplay framework, not a gender identity claim.
Slapper aka leather slapper: A short two-layer leather paddle, often with the two layers slapping together to produce a noisy strike with relatively gentle impact. £15-£35; a popular intermediate impact tool that delivers visual / audible drama with modest sting.
Slave: A submissive role denoting deeper, often 24/7 service and ownership beyond scene-based submission. The term has obvious historical weight; modern BDSM usage is strictly consensual, between adults, and revocable at any moment, distinct in every respect from chattel slavery.
Snap hook aka trigger snap, panic snap: A spring-loaded clip used in cuffs, leashes and harnesses. The "panic snap" subset releases under load (essential for any safety-critical connection); the standard trigger snap does not.
Soda-lime glass aka annealed glass: Standard window glass. Cheaper than borosilicate, but more thermally fragile (can shatter under sudden temperature change). Acceptable for visual-only or decorative pieces; not the right glass for insertion toys. Always check that a glass toy is borosilicate before buying.
Soft limit: An activity a partner is uncomfortable with but might explore under the right circumstances — with negotiation, gradual exposure, or a strong trust foundation. Distinct from a hard limit, which is non-negotiable.
Sounding rod: A smooth, tapered medical-grade rod inserted into the urethra for specialised sensation play. Specialist niche requiring strict hygiene and adequate water-based lubricant. Genuine medical risk if technique is wrong; not a beginner activity.
Spandex / Lycra: Stretch synthetic fabrics used in fetishwear, catsuits and zentai. Lighter and more breathable than latex; less of the squeaky shine, more wearable for longer periods. Common in dance-influenced and sportswear-influenced kink aesthetics.
Spanking: Impact play delivered by hand to the buttocks. The most common entry-point to BDSM impact; sets the foundation of consent, pacing and aftercare without requiring any equipment.
Speculum: A medical instrument used to open the vagina or anus for examination, repurposed for medical-play roleplay. Plastic single-use versions £3-6; metal reusable versions £15-30. Always use water-based lubricant; sterilise the metal versions between uses.
SPH aka small penis humiliation: A consensual humiliation practice focused on penis size. A specific kink within humiliation play; like all humiliation, the language used is pre-agreed and never personal-attack territory. Common offering in pro-domme repertoires.
Spreader bar: A rigid horizontal bar with cuffs at each end — used to hold the ankles (or wrists) at a fixed distance apart. Removes a partner's ability to close their legs without immobilising them entirely.
Spreader cuffs: A spreader bar with built-in or attached cuffs at each end, locking the receiver's ankles (or wrists) at a fixed distance apart. The integrated version of spreader bar + separate cuffs; simpler to use, less modular.
SSC aka Safe, Sane, Consensual: The traditional ethical framework for BDSM: practices should be safe, sane, and consensual. Largely superseded in newer scene writing by RACK (Risk-Aware Consensual Kink) but still widely cited.
St Andrew's cross aka X-cross, BDSM cross: A free-standing or wall-mounted X-shaped frame designed for restraining a partner spread-eagled. The visual shorthand for a serious bondage room; ours are made to commission in our UK workshop.
Stag: The watching partner in a stag-and-vixen dynamic, where the watching is positive rather than humiliation-flavoured (in contrast to the cuckold framing). Same physical setup; different emotional register. The "vixen" is the primary partner with the third party.
Stag and vixen: A specific hotwifing framing: the stag (AMAB primary partner) watches or facilitates the vixen (AFAB primary partner) being sexual with a bull (third-party AMAB). Distinct vocabulary from cuckolding; same physical setup, different emotional register.
Steel plug: A butt plug made of 316L surgical stainless steel. Substantially heavier than silicone (250g+ typical), holds temperature for play, and lasts indefinitely. The premium-tier plug material; £30-£100 entry, hypoallergenic for almost everyone.
STI testing: Regular sexual-health screening, particularly important for non-monogamous or play-party contexts. Free and confidential via NHS sexual-health clinics in the UK; recommended every 3-6 months for active multi-partner dynamics, sooner after any unprotected encounter.
Strap-on: A wearable harness that holds a dildo, allowing the wearer to penetrate a partner. Used in pegging, queer sex, and any context where the wearer is the inserting partner.
Strapless strap-on: A strap-on dildo with a bulb the wearer inserts vaginally to hold the dildo in place, no harness required. Allows the wearer's vaginal muscles to control the toy; popular with AFAB couples. Feeldoe and We-Vibe Tango+Doppio are well-known versions.
Stroker aka masturbation sleeve: A textured silicone or TPE sleeve designed for penile masturbation, typically with one open end and one closed end or both open. Fleshlight-style enclosed strokers and Tenga-style open sleeves are the two major formats.
Sub aka Submissive: The receiving / yielding partner in a power-exchange dynamic. The sub agrees in advance to follow the dom's direction within negotiated limits and retains the right to halt at any time via safe word.
Sub-drop: The emotional or physical low experienced by a submissive partner in the hours or days after a scene, caused by the body returning from elevated endorphin and adrenaline states. Aftercare and follow-up reduce its severity.
Subspace: An altered, often euphoric mental state a submissive may enter during an intense scene — driven by endorphins, adrenaline and parasympathetic response. The corresponding state in a top is sometimes called "topspace".
Suction-cup dildo: A dildo with a strong suction cup base, mountable to any smooth flat surface (shower wall, bedframe, chair seat). Enables solo penetrative use hands-free. The suction cup is also the harness compatibility marker for many strap-on systems.
Suspension: Bondage that supports the submissive's body weight partially or fully off the ground using rope, cuffs or a sling. Highest-risk bondage category; nerve damage and joint dislocation are real outcomes when technique is wrong. Workshop-trained, not learned from YouTube.
Swinging: Couples engaging in sexual activity with other couples or individuals, typically within a community context (swinger clubs, meet-ups, online platforms). Established UK scene with multiple long-running clubs; distinct culture from kink/BDSM scenes.
Switch: A practitioner who plays both dom and sub roles, either in different relationships or by switching during a single scene.

T.

Tantra: A spiritual / sexual tradition from South Asia, adapted in Western practice as a framework for slow, intentional, non-orgasm-focused intimate practice. Modern tantra workshops are widely available in the UK; the practice is distinct from conventional sex therapy.
Tantric sex: Sexual practice within the tantric framework: slow, eye-contact-led, focused on breath and energy rather than mechanical buildup to orgasm. The Western adaptation is more accessible than orthodox tantric practice; both share the unhurried, present orientation.
Tawse: A Scottish-origin two-tail leather strap, historically used for school discipline, now an impact-play tool with a distinct slap-and-sting profile. £25-£60 typical. Heavier and more thuddy than a flogger; lighter than a paddle.
Tease and denial: A practice of repeatedly bringing the submissive close to orgasm and then stopping, sometimes for hours or across multiple sessions. Related to edging but typically more sustained. Often paired with chastity devices for the longer-form version.
Tenga Egg: A single-use Japanese masturbation sleeve presented inside a hard plastic egg-shaped case. Around £10 each; seven core textures including Tornado, Spider, Crater and Wavy.
Threesome aka three-way: Sex involving three people. The most common group-sex configuration; common variants include MMF, MFF and FFF, each with different negotiation tendencies. Requires explicit agreement from all three about boundaries, before and during.
Tickling: Sensation play using fingers, feathers or specialist tools to elicit involuntary tickle response. Specific niche community; the practice has its own dedicated UK groups. Light or extended, sometimes paired with light restraint to prevent the receiver escaping.
Tongue vibrator: A small vibrator with a flexible tip or flat plate designed to mimic the sensation of oral sex. Niche category; specific models (We-Vibe Melt, Lelo Ora) sit between clitoral-suction and traditional vibrators.
Top: The active, "doing" partner in a scene — the one applying restraint, sensation or impact. Distinct from "Dom"; you can be a top in a scene without holding the dominant role outside it.
Top drop: The emotional and physical comedown the dominant partner can experience after an intense scene, mirroring sub-drop. Less discussed culturally but just as real; the same aftercare principles apply.
Topspace: The altered headspace a dominant can enter during an intense scene, parallel to subspace. Hyper-focused, calm, present; can produce its own post-scene comedown (top-drop). Recognising both states is part of mature scene practice.
TPE aka TPR, Thermoplastic Elastomer: A category of soft synthetic elastomers used in cheaper sex toys. Microscopically porous, can absorb body fluids, cannot be sterilised; phthalate-free is the minimum requirement to consider buying.
TPR aka thermoplastic rubber: A near-synonym of TPE in adult-toy marketing; the distinction is academic at consumer-toy grade. Like TPE, almost always porous and rarely third-party certified; default to platinum-cure silicone instead.
Traffic light system: The UK-standard safeword convention: green (continue), yellow (slow down or check in), red (stop everything). Easier to use mid-scene than custom safewords because the meaning is intuitive even in altered headspace.

U.

Under-bed restraint system: Adjustable straps that pass under the mattress, with cuffs at each corner. Converts any bed into a bondage bed without modification; £25-£50 typical. The most-bought "first home setup" beyond hand-held cuffs.
Urethral sponge: Erectile tissue surrounding the urethra on the anterior wall of the vagina, the structure that produces the G-spot response when pressed. The "spot" is a region of this sponge accessible roughly 5 to 7cm inside the vagina.

V.

Vagina: The internal muscular canal connecting the vulva to the cervix, typically 7-10cm long and capable of significant expansion. The vagina is internal; what is commonly miscalled "the vagina" in casual usage is usually the vulva.
Vanilla: Sex or relationship dynamics without explicit BDSM, fetish or kink framing. Not a pejorative in the kink community — many people happily move between vanilla and kink contexts.
Velcro cuffs: The most beginner-friendly cuff format: a fabric or padded leather cuff that closes with hook-and-loop fastening, released in under a second by either partner. £8-£20; the default first-cuff purchase for couples new to bondage.
Vibrating cock ring: A cock ring with a small motor — typically a removable bullet — that adds clitoral stimulation during partnered sex. The most popular shared toy in UK couples' starter kits.
Vibrating panties: Underwear with a pocket holding a bullet vibrator positioned over the clitoris, often paired with a remote control. The wearable form factor for clitoral stimulation in public or partnered-control scenarios; OhMiBod and Lovense make the main models.
Vibrator: Any motor-driven sex toy used to deliver vibration. The category spans bullets, wands, rabbits, G-spot toys, prostate toys, and dual-action — with body-safe silicone the dominant material.
Voyeurism: Sexual pleasure from watching others engaged in sexual activity. The consensual / kink-context version: watching a partner perform, watching live with their knowledge. Distinct from non-consensual voyeurism (a criminal offence in the UK).
Vulva: The external genital area in AFAB anatomy: mons pubis, labia majora and minora, clitoral hood, vestibule, and urethral opening. Distinct from the vagina, which is the internal canal. The pop-culture conflation of the two terms causes more anatomical confusion than any other.

W.

Wand vibrator: A long-handle vibrator with a large rounded head — originally marketed as a body massager. Produces deeper, broader vibration than smaller toys; popular with women, often used externally.
Wartenberg wheel aka pinwheel: A small handle with a rotating spiked wheel, originally a neurological diagnostic tool, used in sensation play to deliver sharp pinpoint sensations across the skin. £6-15 in steel; a low-cost entry to needle-sensation play without actual needles.
Water-based lubricant: A lubricant whose primary carrier is water. The default toy lube — compatible with silicone, glass, steel and latex condoms. Re-wets with water or saliva when it dries.
Wax play: Sensation play using purpose-made low-temperature candles dripped onto the body. Soy and paraffin variants exist; never substitute scented or birthday candles, which burn at unsafe temperatures.
Wax play warm-up: The technique of testing candle wax temperature on the back of the hand or inner forearm before dripping onto a partner. Standard procedure to verify the wax is body-temperature-safe; specialist BDSM candles burn cooler than ordinary candles.
Weighted dildo: A glass or steel dildo deriving much of its sensation from its weight (300g+) and temperature-holding capacity. Heavier than equivalent silicone, with a distinct "filling" sensation that silicone cannot replicate. Premium category.
Whip: An impact implement with a single long tail. The most theatrical and the hardest to use safely; requires practice on inanimate targets before partner work.
Wooden paddle: A paddle with a hardwood striking surface, often finished with leather or a smooth lacquer. Distinctly thuddier and louder than leather; higher impact per swing, requires more careful aim. Intermediate-tier impact tool; £20-£60.

Y.

Yes / No / Maybe list: A negotiation tool: a list of activities each partner sorts into yes (want to do), no (hard limit) and maybe (curious / conditional). Used early in any new BDSM dynamic to map compatibility without the awkwardness of unstructured discovery.
Yoni massage: A tantric massage practice focused on the vulva (yoni in Sanskrit) without explicit orgasm goal. Often offered by professional tantric practitioners in the UK; the framing is therapeutic / energetic rather than sexual-service.

Frequently asked

On the language of the catalogue.

What is a BDSM glossary?

A BDSM glossary is a plain-English reference of the terminology used inside the kink and intimate-toy world, materials (silicone, latex, TPE), practices (shibari, edge play, sensation play), roles (Dom, sub, switch), safety language (safeword, RACK, SSC), and product types (cock ring, butt plug, wand vibrator). BondageBox's glossary covers 274 terms, each cross-linked to the relevant guides and product categories.

Why does BondageBox publish a glossary?

Because the language gates the experience. Customers who don't know what "platinum-cure silicone" means can't evaluate why it costs more than TPE; people uncertain about "RACK" vs "SSC" find the safety conversation harder. Plain definitions, written by people who use the products, lower the barrier to actually buying the right thing.

What's the difference between SSC and RACK in BDSM?

SSC stands for "Safe, Sane, Consensual", the original 1980s safety framework, conservative and beginner-friendly. RACK stands for "Risk-Aware Consensual Kink", a 2000s framework acknowledging that no activity is fully "safe", so adults negotiate risks they choose to accept. Most modern UK kink education uses RACK as the more honest framing; SSC is still useful as a beginner shorthand.

How are sex toy materials defined as body-safe?

A material is "body-safe" when it is non-porous, free of phthalates and BPA, and biocompatible per ISO 10993. The four materials that pass this test universally are platinum-cure silicone, borosilicate glass, ABS plastic, and 304/316 surgical-grade stainless steel. Everything else, TPE blends, "skin-feel" rubber, jelly PVC, fails one or more of those tests and is excluded from the BondageBox catalogue entirely.

What is a safeword?

A safeword is a pre-agreed word (or pair of words) that pauses or stops a scene immediately, regardless of context. The "traffic light" system (green = good, yellow = check in, red = stop now) is the most universal UK convention. Safewords are necessary because "no" and "stop" are sometimes part of the negotiated dynamic; the safeword sits outside that play layer and is always honoured.

Are these glossary terms used internationally?

Most are global standards (BDSM, SSC, RACK, safeword, aftercare, shibari, kinbaku). Some are UK-specific: ISO 10993 (the EU/UK biocompatibility standard), AVMS Regulations 2020 (the UK age-check law for adult content), R v Brown 1993 (the UK case law that shapes what consensual play can include). The glossary flags region-specific terms inline.