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
that nasty hoe is a brainer too
by Mandy October 10, 2004
by Not Joe Bereta April 24, 2013
A Brainer is when you do something because it had to be done and you knew it was the right thing to do.
by WolfBrother13le April 24, 2013
by Sourcefed fan15 April 24, 2013
by TheCurryFairy September 07, 2006
when you're excited to learn something new, eg. math, science. it's basically a boner in your brain a.ka brainer.
by soma689 April 25, 2013