The slave masters or the slaves, just as in sado-masochist sex play.Thus, I conclude that FSM stands for Fascist Sado Masochists.Yes, it is true that in sadomasochism the participants are actually consenting adults, and they often use a "safety word when they really, truly do mean no, while in Atkinson's political version of S&M there is no such thing as consent, and there are no safety words.