Definitions by ShaggyShaggs

pit fiend 

A woman who becomes violently angry and crazed while ragging, as if her cooter were possessed by some powerful evil force.

Guy 1: My girlfriend's all PMSy and been throwing shit and screaming and crying a lot lately.
Guy 2: Definitely a pit fiend. I'd run.

pit fiend by ShaggyShaggs June 4, 2005