the act of doing a girl in the ass, then raising her arms up and down, resembling a parrot flapping its wings, then ramming her multliple times deeply in the anus causing her to scream like a parrot.
by George "Sex Term King" November 13, 2006

1. "She must have HUGE vagina flaps."
2. "That person is so fucking fat, their belly looks like two huge vagina flaps."
2. "That person is so fucking fat, their belly looks like two huge vagina flaps."
by Agirlmadethisup! September 11, 2009

by ImLame. January 24, 2010

by Sweet ass Val May 9, 2004

by thatgirldrinkinglemonade July 9, 2003

Boy 1: Have you seen that girl on the corner over there.
Boy 2: What, that slapper?
Boy 1: Yeh, she's Flap Nasty!!!
Boy 2: What, that slapper?
Boy 1: Yeh, she's Flap Nasty!!!
by Zack and Mike September 11, 2011
