fap it

fap it

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 fapping it. How horrifying is that?"
Farlex Dictionary of Idioms.

fap it

To masturbate. Used of a male.
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • jag off
  • jagged
  • bash the bishop
  • abuse
  • abuse (oneself)
  • abuse oneself
  • ball off
  • beat one’s meat
  • beat the meat
  • beat your meat