1 definition by BDJ8961

A condition where a girl has a pussy so loose you can fit a damn watermelon in it. It also usually smells of dead fish and generally has lips that sag out of her pants.
George: Dude I totally banged Megan last night!
Ryan: Wtf dude she has the flap!
by BDJ8961 January 10, 2013
Get the The Flap mug.