The act of eating a girl's pussy aggressively- similar to motorboating but down below
Present tense
"What you up to dave mate?"
"nothin' much, just flapping the shit outta my girlfriend"

Past tense
"Alright dave?"
"Yeah mate just flapped the shit outta my girlfriend last night"

Future tense
"whatcha doin' tonight dave?"
"gunna flap the shit outta my girlfriend mate"

The process is remarkably similar to the gif below
by maddogdave May 15, 2016
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A 'Flap' is the name derived for a woman who you wouldn't necessarily 'go out with' or 'date' but you'd definitely have sex with.
"She's definitely a flap!"

"I don't think she's like that fit, but she's a flap"

"Her eyes don't really do it for me, she must be a flap"
by Bowms and Buns February 22, 2013
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Not responding to text, or calls: avoiding people: Not following through with word/or promise.
"I thought you were gonna hit me up?"

Oh, i forgot.

"Shut up you a FLAP!!!"

-____-
by NDP!! February 7, 2013
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Derogatory for workers at big box/chain, auto parts retailers that employ low skilled workers. F-ucking L-ocal A-uto P-arts S-tore.
The idiot at the FLAPS gave me the wrong part again.
by hutch1200 September 21, 2011
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“Bro, I just took a fat flap.”
“Just flapped.”
“I’m bout to take me a flap.”
by doggydoggsaladstew August 24, 2019
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The art of smacking your erect penis against your inner thigh to the point of climax.
"I walked in on my brother flapping and listening to the audio of a slaughterhouse."

"I had to rip out all the leg hair on my thigh because they were covered in cum from me flapping."
by theflapmaster December 18, 2013
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