1 definition by mentallyblind

To grab the extra skin on ones scrotal tissue and stretch them out to each side, with the penis in the middle. The veins in the testicles resemble the structure of a bats wings.

Term used in the movie "Waiting" which deserves three kicks if caught looking at one.
"aww no!! not the bat wing!!"
"haha, gotcha my friend. now that three kicks you raging cock-smoker"
by mentallyblind February 14, 2006
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