The act of pulling one's scrotum (testicles included) through the opening in one's pants or shorts, thus exposing the beauty of one's gonads for all to admire. Named for the remarkable resemblance of the display to a human brain, hanging in the breeze.
Dude was hanging brain at The Coney for almost an hour before he got busted by some chick drinking Yeungling.
by Jeff Houser November 5, 2003
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When your balls hang out the leg of your shorts and you are not even aware of it.

This commonly occurs when you lean back and put your legs up, while in a seated position and you're rockin short, loose-fitting bottoms, i.e., short shorts or short swim trunks.

Being stoned helps, too.

This occurs with a much higher degree of frequency in wearers of boxers than in wearers of more supportive undergarments.
Did you see that? Tom was hanging brain the whole time he was hitting on that chick! I wonder if she noticed?
by Gannon Guckert July 27, 2005
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another way of saying just chilling. or nothin....common replies to the question of "whats up?" or "whats going on?"


the means in wanting to "get some" or have some sort of sexual activity with the opposite sex
guy1: hey yo dood? was good?

guy2: aw jus hanging brain man.


guy1: what do you wanna do mayne?

guy2: all i know, is i wanna hang brain!

guy1: k lets call some girls!
by hood hoodlums February 24, 2009
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Hang brain is not the act of placing your scrotum on someone or something as noted in the other definitions. That would be "tea baggin." Hang brain is just the act of hanging your scrotum (testicles and all) out of the zipper of your pants.
The doctor wanted to see check my scrotum for unusual lacerations, so he asked me to hang brain.
by AT February 4, 2004
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to hang ones balls out of their pants and walk around with them hanging out like that
"i was hanging brains over john and we took a picture to use as black mail."
by R November 20, 2003
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When a dude pulls his hairy balls out of his zipper and attempts to walk around the bar and pick up unsuspecting chicks. The irony is that he is actually using the only brains that he has!
Brandon Abby was hanging brains at the bar last night.
by Kate June 30, 2004
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Pool/Billards Term: When one misses a shot leaving a ball hanging near a pocket making for an easy shot for the opponent.

Synonymous with hanging the brain, brain hanger, hanging some brain, brain hanging, brain hangage
Barry's been hanging brain this whole game leaving Pete with some real easy shots.

If you're prone to hanging the brain, you might as well call it a game already.

Oof! That 8 ball is a real brain hanger!

Looks like you might hang some brain on this 9 ball.

"The guy was just hanging brain. I mean, what's all the fuss?"
by KolbyBryan November 28, 2019
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