Sadism and masochism, known collectively as sadomasochism ( SAY-doh-MASS-ə-kiz-əm), are the derivation of pleasure from acts of respectively inflicting or receiving pain or humiliation. Practitioners of sadomasochism may seek sexual pleasure from their acts. While the terms sadist and masochist refer respectively to one who enjoys giving and receiving pain, some practitioners of sadomasochism may ... Wikipedia