While receiving a lap dance you are farted on. Thus creating a flap dance.
by flappdance March 26, 2015
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When a person has to lift the meat apron to give a sexy lap dance. Aka grinding on a fatty and having to lift the flap of fat to touch the junk.
The two lard asses at the end of the bar keep doing the flap dance to Justin Timberlake.
by Sparkle Horse kitten February 8, 2017
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