Blue Vain Brain Boner 

Something that strikes a chord in someone's thinking, creating a obsession of "enlightenment" and stimulation in knowledge, and gets obsessed in his/her thought pattern until his / her thought/idea wears off or the thought gets put into action.

John: Hey, have you seen that recent philosophical discussion between XXX and YYY on YouTube?

Peter: Yeah, it was so good it gave me a blue vain brain boner.

Blue Vain Brain Boner by Slim and Gee Production April 16, 2011

no-brainer 

A girl who won't perform oral sex.

She's cool and all, but she's a no-brainer, so you'll have to settle for an old-fashioned.

no-brainer by cuban April 26, 2005

Brain-Weasels

A common condition where someone makes repeated grammatical errors, often followed by hysterical laughing and joking. The only cure for brain-weasels is to suffocate them by smothering the victim with a pillow.

Crap, you're infested with the BRAIN-WEASELS! Quick, smother him/her with a pillow.

*followed by a small footchase and a pillow smothering*

Brain-Weasels by Noah February 1, 2005

brainstorm

To excrete feces through the anus; to defecate. Usually performed in public restrooms at the workplace.

Josh was brainstorming in the stall next to me while taking a business call on his cellular phone.

I gotto brainstorm, but the bathroom smells like curry!

brainstorm by Moses Maloney May 23, 2006

Brain Check 

When a girl is dying to give you some head but you just aren't in the mood for it -- you ask her for a brain check.

Tim: Vicky really wanted to give me a blow job last night...

Ryan: So did she?

Tim: Nah, I had just hooked up with her room mate, so I asked her for a brain check.

Brain Check by J Ganthier October 12, 2008

salty brain

When your getting a blowjob and when your about to cum you pull your dick out of her mouth and fire a load straight up her nose.

You dude I was getting a blowjob so I pulled out and gave her a salty brain.

salty brain by Big Tessy May 22, 2008

Baby Brain 

1. An uniformed voter who simply votes for the politician who promises to redistribute the most wealth.

2. There is one undeniable truth, Children will Always give you a Liberal answer to a political questions.

-Hence Baby Brain-

Derrick: Hey man, why on earth are all of these people in love with Obama. Don't they know he is going to increase taxes and hurt the economy?

Chase: Yeah but he keeps promising to buy them stuff with all that stolen wealth!

Lauren: Just a bunch of baby brains...

Baby Brain by Rooster Veno February 1, 2013