Top definition
The Gunji Flap is the weirdest piece of skin on a man's body. It is located below the testicles and above the taint. This flap of skin is known as the Gunji Flap.

Very Similar to the "taint" which is the 2nd weirdest part of the body.
"Dude! I was watching this movie with Tom Cruise and I noticed he had the hottest Gunji Flap!"

"Dude I heard my friend was rubbing his Gunji Flap to some porn last night! What a tool!"
by ydooWoody February 22, 2012
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