1. Noun a guy that does things with his tongue pecker or other parts of the male body to women mostly in the ass region.
sally to jony "yeah, my boyfriend is a Mr. Slippyfist."
See also South park. but has no connection to the Mr. Slippyfist there.
The alias name for the child molesting camp counselor on South Park. Season 5 Episode 3 "Cripple Fight"
NEWS REPORTER:"The FBI has finally caught the child molester Mr. Slippyfist"