Big brain

I got Big brain

Parens: Your so smart
My brain: Big brain

by Geometrydash667 February 10, 2020

Boner-Brain

When ones intelligence level decreases as blood flow levels lower in brain to accommodate the needed increased flow to the penis during a erection.

I can't do math right now, I totally have boner-brain.

by JDiddy2Pretty November 11, 2015

brain fuggler

a person who fucks people in the head

damn that brain fuggler

by sabastard September 3, 2009

toss brain

noun, derog. an idiot, literally a wank brain or a person whose brain is capable only of masturbation

"Stupid toss brain can't count his nuts twice and get the same answer."

by kiwimich January 30, 2006

brain ninja

Title given to girls by comedian Dane Cook. Girls have the power to fuck with a guy's mind by saying something so simple that it eventually drives them crazy.

Girls are brain ninjas! They know how to get in there with their katanas and cut ya! And then disappear into the night!

by brainninja14 December 1, 2009

Fart Brain

1. Someone who's head is devoid of nominative brain tissue. Similar to the more common air head the cranium of the subject contains nothing but gas. However in this instance, the gas inside the cranium consists mainly of stinky gut methane.

2. Someone who consistently brain farts.

"I admit that I slept with your best friend, honey but honestly, it didn't mean anything."

"Why don't you just fart off, fart brain?!"

by deadestfish May 3, 2009

brain pan

A motorcycle helmet. Specifically the kind that just covers the top of your head. They are mostly sported by riders on top of a American brand motorcycle, chiefly, Harley Davidson.

Hey Pete, good thing you were wearing your brain pan when that car slammed you. Your face is a mess but at least you can think straight!

by WindowLicker9000 April 11, 2010