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.
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"
the female equivalent to tea bagging
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.
A bisexual person. One who ''swings both ways''.
Did you hear about John taking a bloke home the other night?
Yes, I know he's always been a bit of a cat flap.
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Her fuck flaps looked like a mound of old lunch meat.
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The small slivers of flesh surounding
a back door/shitter
wow, that girls got one large set of crap flaps
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The mysterious loose appendage of skin on the female's vaginee.
'Holly's fuck flap gave me a rash during intercourse last night. She enrages me. Holly is a dick slap.'
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