beat (one's) meat
vulgar slang To masturbate. A term only applied to men. A: "Why is he all embarrassed today?" B: "Oh, his crush walked in on him beating his meat. How horrifying is that?"
beat the meat
vulgar slang To masturbate. A term only applied to men. A: "Why is he all embarrassed today?" B: "Oh, his crush walked in on him beating the meat. How horrifying is that?"
beat the meat
Masturbate, as in He was always beating the meat. This term, considered vulgar slang, is used for males, since it uses meat in the sense of "penis," a usage dating from the late 1500s.