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1.) The state of a man's penis when it is not erect.

2.) The foreskin of a man's penis.
"man, that cold water sure gave me a flerg"

"aww dude, that bunk chick turned my wood to a flerg"
by Chris Donald December 28, 2007
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2
The state of a man's penis when it is not erect.
"Wut a think of dat holmes"
"Yo, dat bunk chick just gave me a flerg"
by Chris Skyler December 20, 2007
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