Smooth Brain

Opposite of big brain. Smooth brain refers to an idiot or someone dumb. Neuroscientists believe the more folds you have in your brain means the smarter you are. Therefore if you are called smooth brain, you have less folds and therefore dumb.

How did you forget to lock the door? Good move, smooth brain.

You don’t know basic math? Smooth brain 🙄

by TheoPham September 14, 2019

Big brain

When you do something smart for once in your life. overcome a problem with a good solution

*he punched thorugh his computer screen so they can't check his search history*Big Brain

by Beepers Boop November 10, 2019

cookie brain

When you eat lots of cookies of too many varieties, and thus require the use of reserve brain power to process said cookies

Person 1: i don't know i just say things, particularly now in my compromised mental state.

Person 2: sleep dep?

Person 1: in addition to cookie brain.

by Zipline Pro December 15, 2010

pinky and the brain

An Old Cartoon Series which showed two mice who wanted world domination (see microsoft).

<you>:hey man, what are you going to do tonight?
<someoneelse>: oh i do not know, maybe I will watch pinky and the brain tonight

by Goens March 06, 2006

Fuck Brain

The slightly incapacitated state of mind after a proper, vigorous fucking... and at least one orgasm.

You're under the influence of fuck brain, dude... you just asked me to MARRY you!!! LOL

by Scrappy SamCat January 28, 2009

Brain Diarrhea

An affliction where a constant stream of crap spews out of a person's mouth.

Peep1: Wow that guy just doesn't know when to shut up.
Peep2: Lol, some people say whatever they think whenever they think it.
Peep3: Ya, he has Brain Diarrhea.

by jazsd July 18, 2013

dude brain

Noun. (1) A guys way of thinking - practical and consistently trying to make life easier/better

Syn. Dude Think

Cinnamon rolls in a waffle iron <-- Dude Brain

by electric_nerd May 26, 2016