2 definitions by poo inator
that girl has a big ol' vag.
by poo inator February 1, 2006
Guy is required to insert penis between girls legs as she flaps them together violently, as it beats the hell out of the mans weiner, and by chance causinghim to sperm on her chesticles, and have her yell, "The Flapping Butterfly!"
by poo inator February 1, 2006