Top Definition
When the labia minora(inide lips of vagina) hang out like a penis, but when you touch it, it will invert itself like when you touch the eye of a snail.
i saw my girlfriends flappy chappy
#flappy chappy #vagina flap #happy chappy #girls penis #vagina penis
by EL, WS, GR March 01, 2009
4 Words related to flappy chappy
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