Fry brain 

Used to refer to someone who has no general concept of anything... Ever! Such people regularly spit out such heroin soaked random gibberish and ideas, you find yourself standing in confused aw! And just laugh!

Fry brain: if u watch too much 3d tv, when u take the glasses off everything will be in 3d.

Guy: your a dead shit

Fry brain(trying to be clever): I'll spew all over your balls

guy: WTF that's still bad for you! Idiot

Fry brain:ahuhuhuh that's fat
his mate: hey bro we sould do something!
fry brain: you don't even know my name. BOOM

Fry brain by Aussiedeadshit September 25, 2010

Stink Brain 

A mean term to call someone that smells bad. Saying someone is a stink brain is just a mean way of saying there whole body smells even their brain.

Person 1: UGH what’s that smell?
Person 2: That’s me sorry i haven’t taken a shower in weeks.
Person 1: Ok stink brain that’s disgusting.

Stink Brain by RyanDaSniper December 1, 2019

Cum Brain 

A feeling sorta like a brain freeze that happens right before you cum or while your cumming most common in males.

She made me cum so hard I got cum brain..

Cum Brain by The Bearded Beast August 12, 2018

video-brain 

One who is obsessed with video games. ie a "video junkie"

Person A: "I eat, sleep and breath Metroid! I just can't get enough of Samus Aran!! Do you have any Metroid games?? Do ya? Huh? Huh? Do ya??!"

Person B: "You are such a video-brain!"

video-brain by T.Ractorhead November 24, 2006

motor brain 

the result after being in a very fast car/truck/suv, speed boat, or any other fast traveling vehicle.

Man, after being on that speed boat, I've got motor brain!

motor brain by SpeedDemon123 May 24, 2008

Calvonic Brain

NOUN

to have a brain as perverted and twisted as Andrew Calvo
considered to be an insult

term coined by Dan Aymat

guy 1: dude, would you rather have to bite your mothers ovaries out, with your bare teeth, or have a huge black cock shoved up your ass?

guy 2: dude, you have such a Calvonic Brain

Calvonic Brain by slushybear January 13, 2010

Grass Brain 

After many years of being a Grass Head, one will shun their friends and family to marry their lawn. A form of insanity that few ever possess. It is a cureable disease that controls your mind and heart.

Mr. Smite is now married to his lawn. Some say he's just a wack job. But we all know he has Grass Brain. Poor guy...

Grass Brain by Spirit Girl September 8, 2010