Glossary of Sex and Sexuality
Sex Toys, Sexual Health and Sexual Practices...

What follows is a rather comprehensive list of brief definitions for a wide range of normal and perhaps not so normal sexual practices, sex and sexuality, sexual health and yes, sex toy related terms.

The information contained within the Sex, Toys and Adult Entertainment Glossary of sex and sexuality, sex toys, sexual health and sexual practices, preferences and perversions is only as accurate as the sources relied upon, and as such is presented as much for its adult entertainment value as for any educational purpose it may hold.

Wahl Vibrator:
... the Wahl vibrator is a quiet, powerful, electric vibrator, resembling a hand-held hair dryer in shape. It's one of the most popular vibrators, in part due to the fact that it's been around for years (really, your grandma might've owned one). It has two speeds, and usually comes with numerous attachments.
Wand of Venus:
... a birch rod for flagellation or flogging as in BDSM.
Wank:
... to masturbate. Also a term describing someone in a derogatory way.
Wartenburg wheel:
... spiked wheel sometimes used in abrasion scenes. Wartenburg wheels are used to test neural responses of spinal chord injury patients.
Water-based Lubricant:
... the most common form of personal lubricant or sex lube available today, water-based lubricants are safe to use with latex products like condoms and dental dams. Our most popular water-based lubricants are Astroglide, and Probe Liquid Silk.

Water-based lubricants contain purified water, long-chain polymers, glycerin, and preservatives. Women who are prone to yeast infections should choose a non-glycerin water-based lube.
Waterproof Toys:
... sex toys (usually vibrators) that can be used underwater.
Water sports:
... the use of urine for arousal; urophilia. A humiliation technique where the dominant urinates on the submissive.
Wax:
... to give a hand job, or to play with wax.
Waxing, wax play:
... hot candle wax dripped on the body is an effective means of inflicting pain. Can be sensual or painful, depending on the height from which the wax is dropped.
Weight training:
... the use of hanging weights on genitals or hooks for arousal. The suspension of wieghts from clamps, permanent, or temporary piercings attached to the body.
Western grip:
... a style of masturbation where the man holds his penis with his thumb facing up - similar to the way a cowboy holds the rope during a rodeo.
Wet:
... used to describe a woman who is sexually aroused and producing vaginal lubrication. "Her pussy was wet..."
Wet Dream:
... slang term for nocturnal emission.
Wham-bam:
... a quick sexual encounter.
Whip:
... usually made of leather with a medium-sized handle and long braided leather strings. To strike with repeated strokes, as with a strap, flogger or rod; also refers to an instrument, either a flexible rod or a flexible thong or lash attached to a handle, used for inflicting pain or pleasure on a person.

Check out the Adult Supermart's collection of whips and other BDSM toys.
Whipping:
... striking or flagellating a partner for sensory enhancement.
White room:
... room where medical and clinical games are played.
White slavery:
... the sale of one race to another for purposes of prostitution.
Whore house:
... bordello
Wife swapping:
... exchanging spouses with another couple for sexual purposes.
Worship:
... reverence of an object or person. To lavish attention to a body part.
Wrapping:
... term used when a whip or similar weapon curls round the body.
Wrapping:
... wrapping of the body with rubber, adhesive tape, or cling-film.
Wrestling:
... a physical struggle between two or more people, used as sexual arousal by some.
Wrist suspension:
... suspending by the wrists using specially padded wrist cuffs, often in conjunction with a body harness.