extra skin on a vagina that covers the opening of the vagina.
guy 1:Dude someone told me you got laid last night.

guy 2: Ya but she had a flap.

guy 1: thats nasty
by xx Ice Bitch xx June 2, 2010
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The name you call a stingray when you dont know the exact name on moment. Could also be known as "sea pancake"
by Carry.on.my.wayward.son June 27, 2017
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referring to someone who is flappy. particularly someone who is overly obese to the point where their body flaps.
i was at burger king yesterday and i saw flaps ordering like a 10 stacker with a diet coke.
by mazimaz July 11, 2008
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After looking at manky things on your computer, you get up and jump about whilst flapping your hands by your side. While your neighbours watch you in a confuzzled way.
Blondie - Omg the guy across the road from me is flapping! Only twatty people like him would flap.

Rawkitup - Omg he is such a sad loner.

Blondie - He has a mullet. Enough said.
by Blondie and Rawkitup June 3, 2005
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To masturbate with foreskin, similar to fap, but specifically for an uncircumsized penis.
I'm not circumsized, so I flap instead of fapping.
by PBAsydney April 27, 2009
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