This glossary of BDSM (an initialism for bondage, discipline, domination, submission, sadism, and masochism) terms defines terms commonly used in the BDSM community. BDSM activities are described as play in BDSM terminology. Etymology BDSM abbreviations have their origins in classified personal advertisements, where euphemisms for paraphilic and socially-disapproved practices were required by periodical editors to circumvent censorship and obscenity law. The term BDSM is a portmanteau of initialisms intended to encompass all of the following activities: Bondage and discipline (B & D or B/D) Dominance and submission (D & S or D/s) (including "master and slave" role-playing scenarios and ongoing relationship structures) Sadism and masochism (S & M or S/M) Capitalization conventions Some people in the BDSM community begin dominant terms with an upper case, for example: Top, Master, Dom, Domme, etc., as well as to begin submissive terms with a lower case, even where normally incorrect, chiefly in acronyms and abbreviations, such as D/s for Dom/sub. Some extend this to honorifics and capitalization: for example Master Rob's slave, , may refer to him as Sir and herself as (or as "this slave", restricted from referring to themselves in the first person). Others are highly dismissive of this "slashy speak". BDSM glossary 24/7: A relationship in which protocols are in place continuously. Abrasion: Use of friction with a rough surface against the receptive partner. May be used to sensitize an area of skin. Adult Baby/Diaper Lover (ABDL): Adult babies receive gratification from role-playing an infant a form of ageplay. This can involve submission on the adult baby's part. Diaper lovers receive gratification from the wearing and often using of diapers. Whilst these two paraphilias are distinct, it is common that a person who enjoys one will also enjoy the other to some degree. Aftercare: The time after a BDSM scene or play session in which the participants calm down, discuss the previous events and their personal reactions to them, and slowly come back in touch with reality. BDSM: Bondage/Discipline, Dominance/Submission, Sadism/Masochism: a combined acronym often used as a catchall for anything in the kink scene. Bondage: Acts involving the physical restraint of a partner. Bondage typically refers to total restraint, but it can be limited to a particular body part, such as breast bondage. Bottom: One who receives physical sensation from a top in a scene; the receiving partner. Breast bondage: The act of tying breasts so that they are