in a flap

When there’s no chicken in KFC and you don’t know what to do.

Ahh mate, KFC have run out of chicken, I’m in a flap.

dick-flapping

A man having more than one sexual partner while he is married with a family.

Tiger Woods' wife got a huge divorce settlement and she deserved every penny after all of his dick-flapping.

flap jappin

to pull the labia majora outwards while performing cunnilingus and frantically slap them together

she: what the fuck are you doing down there?!
he: oh baby, just flap jappin this mutha fucka.

Poon Flap

When the crease underneath the muffin top smells like cheese

Bro¹: yo i was with ogirl last night and she had a "poon flap"
Bro²: lmao damn Foo, so what yall do then?
Bro¹:asked her if she wana take a shower with me lmfao

flap that

expression, indicating one will do their best. Means to move with intention and purpose. Synonymous with "birding it." Antonyms: Fluttering

Joe: I'm gonna get the money, you keep the gun on him. If he moves, shoot the bastard.

Dale: I can flap that

Joe: You better not flutter

Dale: I'm a bird it up in this bitch!

Flap Getter

A Person who gets all the flap.

John: 'Hey baby, how about we go back to my place and do it?'

Jennifer: 'Sure hun'

Sam: 'Oh man, that guy is such a flap getter. He gets all the flap'

flap flick

The opposite to flicking a man's genitalia, flap flicking occurs when you flick the female genitalia with your fingers.

"My woman flicked me in the balls so I gave her a flap flick on her cunt!"