Breast bondage: The act of tying breasts so that they are either flattened against the chest or so that they bulge.
Chastity: A form of erotic sexual denial or orgasm denial whereby a person is prevented from access to, or stimulation of, their genitals, save at the whim or choice of their partner, usually by means of a device
Cuckold: When used in a fetish context, describes the fetish of men who find masochistic pleasure in watching their wives have sex with other men. The man is complicit in the infidelity and often helps arrange the meetings. The couple need not necessarily be married, but there needs to be some kind of commitment between the two.
DM: Dungeon Monitor, a person who supervises the interactions between participants at a play party or dungeons to enforce house rules - essentially, the bouncer of a BDSM event. They sometimes also play cruise director to keep/get the party going.
Erotic sexual denial: keeping another person aroused while delaying or preventing resolution of the feelings, to keep them in a continual state of anticipatory tension and inner conflict, and heightened sensitivity. (see also tease and denial and chastity).
Erotic spanking: The act of spanking another person for the sexual arousal or gratification of either or both parties..
Genitorture: Torture of the genitals.
Hogtie: To tie up a submissive's wrists and ankles, fastening them together behind their back using physical restraints such as rope or cuffs.
Impact play: Part of sensation play, dealing with impact such as whips, riding crops, paddles, floggers, etc
Infantilism: Parent/child or parent/baby role playing.
Maintenance: Weekly spankings to cover the little things that might have been missed, remind the submissive to behave and allow the Dominant to release stress
OTK: Over the knee (spanking).
Play party: A BDSM event involving many people engaging in scenes.
Pup-play: Sub is made to act like a puppy. Sub barks, whines, eats from a bowl, etc. Such play is sexual, but also focuses on the altered mind-space of bottom/pup and the complete dominance of his/her Trainer/Master.
Service-oriented submission: A person who enjoys performing a service in a sexual or BDSM environment.
Tease and denial: Keeping another person aroused while delaying or preventing resolution of the feelings, to keep them in a continual state of anticipatory tension and inner conflict, and heightened sensitivity. (see also orgasm denial).