look up any word, like donkey punch:
 
1.
One more word for a lesbian.
“Hey, that new chick in the company is kinda cute.”

“No chance dude. Have you noticed her hoop earrings, the thumb ring and collection of Indigo Girl CDs? She’s got to be a flap lapper.
by Trav October 01, 2004
 
2.
A woman who performs oral sex on another female.
A woman with homosexual tendencies.
Stop being such a flap-lapper and go out with Tony already!
by audkap February 11, 2008
 
3.
Woman who eats or licks pussy.
That bulldyke is a flaplapper.
by icloseem February 05, 2008