brain-wanking 

Act of spending one's time with very complicated theoretical problems which, when solved, do not serve for anything useful or practical.

J: Did you understand the sense of the problem in theoretical quantum mechanics which we solved in our course today?
P: It was just some brain-wanking. It does not have any practical meaning.

brain-wanking by xxteapot November 30, 2011

Brain Bond 

what is yelled when two or more people say the exact same thing, think the exact same thing, or do the exact same thing at the same time.

Joe: "hey that car over there looks like a shroom"
shannon: "OMG i was thinking that exact same thing! BRAIN BOND!"

Brain Bond by shanntaban December 18, 2011

Brain Teazer

1. Alternate spelling for "brain teaser"

2. A puzzle that makes you feel like a total bad ass when you solve it.

3. One of the most complicated of puzzels testing intelect, logic and reasoning.

Are you really playing with a puzzle?!

Nawh its a brain teazer!

Brain Teazer by PrincessPeachBaby May 24, 2012

Brain spew 

When ur brain suddenly remembers that thing it couldn't think of anywhere up to hours earlier and u can help but say it out loud and feel so much better for doing so!

I just had a brain spew! That guys name i couldnt remember that I gave a hand job to in church that day was andy!! Handy andy!

Brain spew by Nalker nalker November 16, 2012

Brain-Nuke 

That moment of desperate repression when someone has severely pissed you off but verbally skull-fucking them would end in divorce / joblessness / restraining order / social services intervention.

"Man, my mother-in-law turned up today and decided she was staying for Christmas. I had a total brain-nuke trying not to tell that bitch to fuck her tinsel and kick her ass out"

Brain-Nuke by Edmund Dantes November 15, 2013

brainblank 

When You Suddenly Forget EVERYTHING

He BrainBlanked And All Of A sudden Fell Over Mumbling

brainblank by "That One Person" February 14, 2014

Brain 

1. An organ in the head

2. The object that zombies eat

The zombie Ate brians brain

Brain by Naruto365 April 24, 2014