BDSM
nounUK /ˌbiːˌdiːˌɛsˈɛm/ · US /ˌbiˌdiˌɛsˈɛm/
Etymology Contracted initialism of B&D + D/s + S&M, meaning respectively bondage/discipline, dominance/submission, and sadism/masochism.
1
A variety of often erotic practices involving bondage, discipline, sadomasochism, dominance and submission, and other related interpersonal dynamics.