Orange-Brain 

Someone who has the IQ of a fucking orange that they are so dense to the outside world. Basically a dopey fuck who doesn't have a clue.

Look at that twat over there, what an Orange-Brain, fucker.

Maniac, you have the IQ of a fucking orange, you dip-shit

Orange-Brain by WbZ November 10, 2008

lane brain 

giving head going down a main street/highway.

"& on that lane brain man she had alotta charm" 3 6 mafia

lane brain by amieisntdrugfree July 20, 2008

Ass Brain 

A BIG idiot

My ex is an Ass Brain

Ass Brain by Britteeennnyy August 20, 2011

Rusty Brain 

A sex act, similar to the rusty scupper, where a man and woman are engaging in anal sex because she is having her period. Shortly before climax, she pulls out a strap-on and rubs it all over his face. She then yells "Welcome to the Thunderdome Bitch".

Much to his eventual dismay, Lisa pulled a rusty brain on her boyfriend while she was having her period.

Rusty Brain by Brucestafer August 3, 2008

smooth brain 

smooth brain- it is someone that is an idiot. this means that the more ripples you have on your brain, the smarter you are. So in conclusion, if you got a smooth brain then you are a dumb ass.

1.Jim sucks at chess he is such a smooth brain
2. Jim: HOWDY Y'ALL! Darry: pfft smooth brain Bryson: what a dumbass

smooth brain by yomama.coma December 4, 2020

Kentucky brain 

When two people constantly think alike for no reason, it is said they share a brain in Kentucky.

Great minds think alike... and so do ours!

Kentucky brain by Andizzle4Life September 7, 2005

Fuck Brain 

Someone who never uses common sense, like engineers and people who just don't get life.

A board is cut 1/8" short and their micromiter mind says it's off. You kindly reply "It's a house not a hydrolic pump FUCK BRAIN !

You screwed his girl friend, of course he's pissed, FUCK BRAIN !

Fuck Brain by unomee May 17, 2006