It's when you grab the skin between your hanging balls and your cock and then tighten your grip all the way up to your balls forcing them to really stick out, this makes your sac look veiny and bumpy like the top of a brain.
I asked my girl to examine a spot in my testes, when she came in for a closer look, I tightened up my grip and hit her in the eye with the brainer.
by allen powell January 17, 2006
Jim: Do you have to put your marshmallow in the fire?
Clark: Dude, it's a no brainer, as a rule of thumb campers should put their marshmallow in the fire.
Clark: Dude, it's a no brainer, as a rule of thumb campers should put their marshmallow in the fire.
by Nosseir April 16, 2007
by nick_g August 12, 2011
by Not Joe Bereta April 24, 2013
An easy decision made using the brain. As opposed to a 'no brainer', an incorrect term seeing as how all decisions are made using the brain, as pointed out by SourceFed's brilliant Joe Bereta.
by anIrishViking April 24, 2013
The decision was a brainer
by Sourcefed fan15 April 24, 2013
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