Hare Brained

A person having the intelligence of a rabbit.

An idea or philosophy that a rabbit could have conjured up

George W. Bush was the most hare brained President we ever had

Who ever came up with the hare brained idea of a burial vault?

by Stefonamus April 2, 2010

Brain Boner

When you are talking and then have a random smart moment.

"Your mom just had a brain boner about robotics"

by Expression of happiness July 22, 2014

brained out

Doing a lot of things that require your brain.

Tomorrow has to be all business. 10am office hours for chemistry, then study 3 chapters of psychology. I’m going to be so brained out.

by dramastace May 21, 2016

Gains brain

When you’re so exhausted after the gym that your brain stops functioning correctly

Bro, I can’t remember what I was going to do tonight. I have gains brain after that killer workout!

by Fitter26 December 11, 2019

Broken Brain

The ravages of time diminish both the physical and mental capabilities of even the most gifted individuals; when one can't bathe oneself or cannot even remember that this function is even necessary, it's time to go.

Broken brain!?
Buh bye...like a racehorse with a broken leg. IMMEDIATELY; right there on the track.

by YAWA May 19, 2022

Sonic brain

To infer that someone's cognitive function is on the lower end of the spectrum by alluding to "Sped". Sonic is widely regarded as a very speedy character and sonic is an attempt to play on the word sped. Attaching Sonic to the brain means sped brain for lack of a better phrase.

*Plays game*
John: "Kill him, he is one shot."
Bob: *Misses every shot*
John: Do you have sonic brain?

by Pogopawee March 19, 2021

Shoe Brain

I means someone has the intelligence of a foot, or someone is stupid.

Hunter has a shoe brain.

by thatweirdloser September 10, 2022