brain shock

that feeling that you get when water goes up your nose. the equivalent of brain freeze when you eat something cold

I got brain shock when I tried to do a frontflip underwater

by monkeyknuckles94 January 4, 2010

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brick brain

A brick brain is a person named Jackson who had a brick placed on his head by a Karen.

Karen: BRICK BRAIN!!!
Jackson: *contemplates life choices*

by Assistant to the Regonial Mana March 6, 2020

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Genital Brain

People who always think about sex or think with their genital.

A: He screwed up the deal by sleeping with his boss's wife.

B: Well, he was using his genital brain!

by JSLC May 27, 2017

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Big Brain

Me

I am verry Big Brain.

by da1240me September 28, 2020

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A close reference to "Waterhead" or "Smoothbrain". A "Marble Brain" is typically a just a stupid person with cognitive skills of elementary school kid. Every thought or response is simple & incoherent. Furthermore, it is believed a "Marble Brain" loses a single marble trying to repsond until all their marbles are gone. This is followed by rambling & annoying trailing sentences.

Wow, the retard with a hockey helmet and a bail bonds shirt looks like a Marble Brain.

by Greendukey June 18, 2021

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Bando brain

When one's self has stop striving for anything outside of being homeless; Someone that has claimed a place or property their own but doesn't; the state of mind one often has after homelessness as they hoard, steal, and lie for no reason.

The amount of food he hid in his closet only points to him having bando brain.

by Goatee FOE November 23, 2022

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