backside – n.
The BOTTOM, ARSE, BUTT, ASS, PRATS.
balloon knot – n.
bareback – adj.
Having sex without a condom, used especially for anal sex.
BBJ – n.
A Bare Back Blowjob – i.e. a blowjob with no condom.
BDSM – abbr.
Short for “Bondage and Discipline, Sadism and Masochism.” A catch-all term for a broad array of sexual practices, especially involving restraint and inflicting pain.
bestiality – n.
Sexual interest or sexual acts with animals; ZOOPHILIA.
biphobia, n. – biphobic – a.
Fearful or disliking of BISEXUAL people.
bisexual – a., n.
A person interested in sex with both men and women. Compare HOMOSEXUAL, someone who has sexual interest in the same sex, and HETROSEXUAL, someone with sexual interest in the opposite sex.
blueballs – n.
When a man has an erection for a long period of time without ejaculating; this can cause a swollen, painful feeling in the testicles.
blow job, also blowjob – n.
Oral sex performed on a man; FELLATIO.
boner – n.
bloodsports – n.
BDSM play that involves blood, including cutting and piercing.
bottom – n.
1. The submissive person in BDSM activity. Opposite of TOP.
2. The one who is penetrated during anal sex, especially between gay males. Opposite of TOP.
breath play – n.
Restricting airflow, by strangulation, suffocation, or other means for sexual stimulation.
brothel – n.
A business establishment where prostitutes offer sexual services for money.
buddy booth – n.
A booth in an adult video store that allows viewing and/or interaction with the person in an adjacent booth.
bugger, – v., buggery – n.
ANAL SEX, especially anal sex performed by a man on a man.
bukkake – n.
In porn movies, where many men ejaculate on the face of an actress. See also FACIAL.
bust a nut – v.
To EJACULATE; to have sexual intercourse.
butch – adj.
Possessing traditionally masculine appearance, attributes and behaviors. Often used to describe gay men and women. Opposite of FEMME.
butt plug – n.
A sex toy designed for anal penetration that has a flared base. Usually smaller than a typical dildo and not shaped like a penis.
butt fucking – v.
To have ANAL SEX.