When someone has an unnecessary amount of attitude, like how pussy flaps are an unnecessary part of a vagina.
alternate definition: A roast beef sandwich from Arby's
"daniel, you are such a pussy flap"
when a guy shoots his load on his womans back, lets it dry, then peels it off and feeds it to the chick.
"dude i totally gave sally a flap jack last night"
extremely loose genitals that flap around every direction.
dude: wow, you got flap jacks
chick: i had 4 kids, and 2 of them were fat ass babys, what do you expect
dude:(silence).....
The act of two guys double penetrating a girl by having the girl sitting face forward on one guy (reverse cow girl anal style) and being vaginally penetrated by the other guy facing her.
Michael and Cory totally flap stacked that girl from their acting class.
Jacking off onto pancakes and then eating it
"What did you have for breakfast, Jimmy?"
"I did a little flap jacking"
"deeeeeelicious"
The huge folds of skin near a fat girl's vagina.
I couldn't find her clit b/c of her huge mud flaps.
the pieces of paper that fall out of magazines into your lap.
This magazine is full of lap flaps!