Brain Hinman

Looks like a rat. Hair looks like a winter wonderland. Did I forget to say he looks like a rat.

“Look at that guy over there, he looks like a rat must be a Brain Hinman.”

by David likes Big Macs November 11, 2019

bog brain

when the brain is of dubious size but incontrovertible moisture.

"I heard Ashley wrote down all of her common conversations on notecards to help save time" "whoa. what a bog brain play"

by minerharry January 22, 2025

rainbow brain

When there's a connection between two peoples' brains and they're on the same page at the same time.

I asked my friend about going to a concert and rainbow brain she replied with the exact band I was thinking of that moment.

by Zelda22 January 21, 2021

butter brain

when someone is not very intelligent. kind of a ditz. absent-minded person.

"gosh! sandy never understands anything! she is SUCH a butter brain."

by penguinychills April 6, 2023

Brain poser

A brain poser highlights the act of "posing" as intelligent. It combines "brain" with "poser," immediately signaling someone who's faking intelligence.

"He spent twenty minutes using all sorts of fancy jargon, but it was clear he was just a brain poser trying to impress the boss."

by Mac Merk July 22, 2025

Smol brain

Yes

Smol brain Yes

by Trefka i Monki December 3, 2020

Big-brain

Big-brain, (Which can also be spelled without a hyphen,) means smart, intelligent, and is usually used when someone says something witty in an argument.

Maddie is really big-brain for saying that!
Or
Maddie is really bigbrain for saying that!

by ~Chrysanthemum~ December 2, 2020