Top Definition
shaking one's willy in an eccentric and exciting manner. often resulting in hilarious and wet consequences. can be used as a form of foreplay or to attract other people to engage in the mating process, much like a peacock displays her feathers to attract a mate. a male human will often display his willy in an appealing way to gain sexual prowess.
i am going to use my extreme flapping capabilities to attract a mate at the club tonight.
by sfccurtyla November 11, 2013
alternate word to describe jabbing a nice booty
k-malz: i was flapping that booty at the gyzam
deemo: douchebaggg
enlo: spit roasttt meee k-malzzz
by perthlover321 June 26, 2009
The act of female masturbation. The female version of 'fapping' with reference to the flaps of the vagina.
Girl, I was flapping all night to fifty shades.

Summer to-do list: Slip, slop, slap and flap.
by SnowGirl October 02, 2014
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
via giphy
by maddogdave May 15, 2016
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
the act of female masturbation combined with the sound of fap. A combination of flick and fap.
"Hey, what sound does a girl masturbating sound like?" "Oh dude definitely flapping."
by royalbiznitch April 19, 2015
When a naked man swings his hips from side to side - causing his penis to alternately hit each of his thighs, going from side to side.
He was standing there in the shower, singing and flapping!
by Lotta fra Bråkmakergata August 13, 2007
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