Man-brain

Refers to the way men think in regards to their lack of finesse and attention to detail in general; particularly, though, in socially sensitive ones. Much like using an ax instead of a scalpel to dissect, or a shotgun instead of a sniper riffle to shoot a target.
Anyone exemplifying the man-brain lacks the etiquette to handle delicate or intricate social situations as wells as critical thinking that requires consideration for all the problem's aspects.

When a son tells his mother to move her feet so his girlfriend can sit in an effort to "act more like a gentleman" as the mother has been advising him to do. The son is showing a clear case of man-brain.

by borabora February 25, 2009

brain tree

Someone who is incredibly intelligent.

"You know that girl Claire?"
"Yeah, she's a total brain tree"

by demilovesyou April 11, 2009

Street Brain

The act of getting your dome waxed while driving.

After the keg ran out I totally got some Street Brain driving this drunk bitch back to her place.

by NBA Jam Rules Bro April 3, 2009

Gerber brain

a girl who is especially naive to the ways of the world. a simpleton.

That gerber brain idiot just spilt her drink on my lap.

by P Nutty May 11, 2009

Brain boner

The feeling you get when you are having a lively discussion or listening to an engaging lecture and everything makes sense and it gives you a bunch of new ideas about the topic at hand. The intellectual equivalent of an erection.

DeSean: oh man, that lecture given by Dr. Kobilka about G protein-coupled receptor dynamics gave me a massive brain boner.

Derrick: uhh...right, yeah, totally dude. *pssst* Jimmy, I think we need to re-evaluate our friendship with DeSean...

Jimmy: agreed.

by Longrod Von Hugedong May 26, 2016

Brain Spam

an unwanted mental image that keeps popping up in your brain

Person 1: "omg there were these two gay guys making out on the couch at this party, and i can't get the image out of my head."
Person 2: "ha, you've got brain spam"

by Jake521825 October 23, 2008

cum-for-brains

A horny, promiscuous woman of low intelligence.

That slut Jill is good in bed, but she's got cum-for-brains if she thinks that I'm going to marry her.

by ESB43 June 6, 2018