A quarter gram (250 mg) of heroin.
"Can you do me a flap for $40?"
by RealFamous February 25, 2016
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The act of backing out of a fight or a violent argument.
That man was flapping
by NoFlapping April 21, 2019
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Common term for labia majora, often used to express your sincere affection for a female acquaintance. For a stronger expression of appreciation it is common to add the prefix "piss-"
"hey girl, nice to see you, I'm just gonna get a drink and I'll be back to slam those flaps."

"hey Trixi, I told the rest of the team about your loose flaps and they wanted to check you out"
"hey boys, wassup"
"so, you cool if we all take a turn pounding those piss flaps"
"Hahaha, you can do anyfing you like"
"sweet, that's a good little skank"
by skumliterati March 11, 2015
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For a woman to stand legs apart or even legs akimbo and swinging her hips side to side. So called because this movement can cause a woman, usually an older one, to produce a flapping sound as her lips hit eachother.
Egad!!! Marjorie is flapping on the dancefloor!
by flapaholic August 3, 2005
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Friendly Local Auto Parts Store
You don't have to buy that part from the dealer, just go down to your local FLAPS and get whatever they have.
by seamallowance May 26, 2011
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Flapping it is dialect originally from Manchester. It basically means being a chicken. It's usually used in arguments and fights.
"So we gonna fight or not!?"
*Other person walks off*
"Oi he's flapping it!"
by YaBoiDedoid June 7, 2017
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