Smooth Brain 

A brain that has the quality of smoothness: having an even and consistent surface

Person 1: Wow! Person 2, I am feeling your exposed brain right now, it is so smooth and without wrinkles or blemish. Such a smooth brain!
Person 2: Thank you, Person 1, your compliment is received in a sense of nuanced gratification. I can only imagine the physical ramifications of the immense, sweltering envy you possess as a result of the sheer superiority I display before you, both corporeal and cognitively.

Person 1: Ok, jackass.

Smooth Brain by Phil Johnson 47 December 5, 2020

Brain Bleach

Drugs

Brain Bleach's includes: Ecstasy, marijuana, Mike's Hard Lemonade, Bloody Mary's, ETC...

Brain Bleach by TheCrazyTruth May 5, 2013

Quantum Brain Fart 

is a rule which states that any conceivable thought which ordinarily could be summoned has been lost and has become irretrievable. A complete blank.

He just completely went blank in the middle of the speech. He couldn't say a thing. Musta had a quantum brain fart.

Quantum Brain Fart by OMGR8US October 8, 2012

brain 

1. (n., adj., adv., v.) Any object or occurrence that proves to be inimitably ridiculous, either through keen intelligence or blatant idiocy

2. (n.) A facetious modifier serving to replace the linguistic context of any other word

"The Crank Yankers episode was brain-ville."

Person 1: "Jackson went to a bar last night, by the way."
Person 2: "He went to a brain."

brain by Matt Wood May 13, 2005

Poo Brain 

After a women has consensual fun eating out the rim of the anus after a stinky she then proceeds to give you that goose neck resulting in poo residue on the penis

Aw yeah girl gimme that poo brain not the swirling kind that makes my head hurt

Poo Brain by Grandma’ssnookiecookie April 19, 2020

Big brain time 

Plankton the evil genius giant brain

Friend: Wow, Plankton is the best character!
Friend 2: I know right? He’s the definition of Big brain Time

Big brain time by CherrishNoodles April 21, 2020

Dry brain 

You know how ur brain is slimey well a dry brain means ur dumb basicallly because u dont have the slime inside ur head!

A:hes such a dumb dry brain b:Yeah hes dumber then a slug

Dry brain by anonymous December 7, 2020