lips on the vagina
dam! look at those piss flappers! those are the biggest pieces of meat I've ever seen !!! i like mine well, kind of burnt on the outside and rare on the inside.
by pa pa pimp May 16, 2003
a pseudonym for a vagina, specifically, the labia
Theresa, after years of promiscuous sex, had quite a beefy pissflapper
by Gushue November 26, 2006