Fuck Brain 

Someone thats been fucked in the ear and can now cum out of any part of their body because of all the cum in their head.

Cathleen is a fuck brain because she likes to get fucked in the ears.

Fuck Brain by Dick Face March 18, 2004

Brainer 

Somone who is smart funny and fun to be around and used to trick people to think ur talking bout giving head

man i love to be around that girl shes a brainer

Brainer by gtman43 April 1, 2010

brain gasm 

An unintentional orgasm without any real stimulation so it's all in your mind.

"Oh emm gee. I totally just had a brain gasm while laying down infront of the fan watching t.v."

brain gasm by Lizbo June 12, 2008

Braincheck

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 braincheck.

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 braincheck.

Braincheck by J Ganthier October 13, 2008

brain digger 

One who goes on and on talking about a topic or insisting something despite the reluctant listener. This term can be loosely used for many varying usages.

Example A: Spok, I've heard about your new car a thousand times. Stop digging my brain.

Example B: Uhura doesn't stop nagging me to go to the doctor, what a brain digger.

Example C: I was at Chekov's party yesterday, and there was this brain digger there that didn't stop talking to me. Eventually I just left.

brain digger by Laika the space Dog December 5, 2009

false brain 

the thing that happens when ur dad buys ur degree aka George Waker Bush

george bush sr. bought his son's degree from Yale UNiversity, so he has a false brain.

Bush is a stupid fuck face.

false brain by vickec December 9, 2004

Smegma brain 

Currdled Penis sweat

Damn you can make some fucked up yogurt with smegma brain.

Smegma brain by Smeg the retard January 13, 2009