The labia of the female genitalia
by Ezman May 19, 2003

When playing The Last of Us as a female, she can't tea bag like a man so she uses her smelly fish to go up and down on the face of the corpse which is defined as fish flapping.
by sexyFrendo June 23, 2015

The labia of a promiscuous woman. Can also be used to generally describe skanky, undesirable pussy-lips.
"Man, I went out with this girl last night, and she had a pair of bastard flaps on her."
"I hate it when a girl forgets to clean her bastard flaps"
"I hate it when a girl forgets to clean her bastard flaps"
by smokythebandit June 1, 2014

Using a simple flick of the wrist, the aggressor strikes the victim square in the nuts with the back of his hand, inflicting severe testicular pain. Approaching moves include distraction, ambush, and the popular sneaky stealth manouvre.
by Matty Mc February 27, 2011

When a female uses a vibrator so powerful it causes the vaginal lips to slap each other causing the lips to make a "fart" sound.
Sarah: hey Jen did you use the penetrator 6000 last night?
Jen: yeah it literally caused me to fart flap it was hilarious.
Sarah: oh Jen you love abit of fart flapping.
Jen: yeah it literally caused me to fart flap it was hilarious.
Sarah: oh Jen you love abit of fart flapping.
by nipsmandem May 18, 2014

Gabby won't shut the fuck up
by MrButcher December 21, 2016

Female of Fomunda Cheese. Crud that collects/grows between the flaps of the vagina when it has not been washed. This can consist of Sweat, Dirt, Discharge, and possible semen...god knows what else gets stuck in between there.
by thoushallnotknow August 14, 2014
