What is Bat Brain?
1.
a move personally made up from the batwing, a cruel joke, mostly done by other teenagers, where you take your scrotum, spread half of your sac out with your hand, and cup the other nut in your hand like a brain. takes a while to get right, but when accomplished, is better than the batwing
I flashed robert with the bat brain, and he threw up!
Adam scared a kid with the bat brain.
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