An Imbecile, your brain is a vanilla oreo
Nick, whyd you pee on the floor ya damned oreo brain.
What, you new?
What are you, a Shit Fuck For Brains?
Someone so absolutely unintelligent that their Intelligence Quotient can only be compared to that of a head of lettuce.
Caila can barely figure out how to open a door, she's such a salad brain!
The stupidness that occurs during and after intense physical activity, where the body's limited bloodflow is directed towards the muscles instead of the brain.
I tried to unlock the wrong car in the gym car-park today. Severe case of exercise brain.
A person with an empty skull who is full of shit and stupid like a rock.
Bob is a real dingleberry brain. I told him to be ready by ten o’clock PM! He’s been waiting outside since ten this morning.
When one tries a new weed (marijuana) batch/strain for the first few times, one is usually more inebriated than usual so you feel more wasted than usual. Folks might act more erratic or unlike themselves.
Friend 1: Hey man you b trippin everytime you come over here!
Friend 2: That's cuz I always be having new strain brain trying out some of your trees and gettin extra funkin high you observant motherfucker!
When a guy exhibits behaviors of a young boy whose frontal lobe has not developed even though they are at the age where it should be developed.
He has major boy brain. Why did he not think before he said something so stupid?