Brainer 

The act of using your brain to make a decision.

It was a brainer to watch SourceFed.

Brainer by Not Joe Bereta April 24, 2013

brainer 

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.

"I could save that man's life with a simple marrow donation, it was a brainer."

brainer by anIrishViking April 24, 2013

Brainer 

When you think about a decision and make the right choice. Like a no-brainer but better.

The decision was a brainer

Brainer by Sourcefed fan15 April 24, 2013

brainer 

a girl who sucks dick (gives brains)

that nasty hoe is a brainer too

brainer by Mandy October 10, 2004

brainer 

when you're excited to learn something new, eg. math, science. it's basically a boner in your brain a.ka brainer.

professor farnsworth: all of this knowledge is giving me a raging brainer!!!

brainer by soma689 April 25, 2013

brainer 

Slang for someone who gives oral sex

"Yo you know Shayna's a brainer right?"
"Word?"
"Ye man; go chop dat"

brainer by TheCurryFairy September 7, 2006

Brainer 

A Brainer is when you do something because it had to be done and you knew it was the right thing to do.

Brainer
1.You gave that guy some of your bone marrow well that's a brainer.

Brainer by WolfBrother13le April 24, 2013