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The flat piece of stomach above the vagina.The Flannis doesnt have to be flat u can have round Flannis a buldging Flannis or even a obese Flannis.
"core that girls got a nice Flannis"

"omg look at that buldging Flannis"

"man look at that Flannis its obese"

"o i do like a nice flat tanned Flannis"
by Dragon013 June 21, 2006
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