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.
18๐ 5๐
Someone who is incredibly intelligent.
"You know that girl Claire?"
"Yeah, she's a total brain tree"
16๐ 6๐
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.
9๐ 2๐
a man whos brain and decisions are controlled by boobies , some1 who is not happy unless they are getting new boobie
he could not finish college or go to work on time cause he has booby brain
9๐ 2๐
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"
8๐ 2๐
When a man squeezes his balls so that the scrotum bunches up slightly and takes on the appearance, shape, and texture of brains.
Carl pulled his balls out and showed everyone his rat brains.
8๐ 3๐
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.
8๐ 2๐