Brain swap 

the act of giving and receiving oral sex/pleasure (at the same time) to/with a person of the opposite sex in a very intense and "nasty" manor.

girl: "I'm bored"
boy: "me too!"
girl: "wanna kill time?"
boy: "what did you have in mind?"
girl: "Brain Swap!!"

Brain swap by Sdot.M June 26, 2009

brainsnap

noun and verb

when you suddenly have a complete psycho and all logical thought and reason takes a back seat to your rage and anger. sudden act of rage, without premeditation.

dangerous and illogical things happen.

"My god, what happened here?"
"Tim brainsnapped and thwacked him"
OR
"Tim had a brainsnap and thwacked him"

Examples:
Smashing a whole cupboard full of crockery on the footpath cos your plate wasnt cleaned properly. (From: He Died With a Felafel in His Hand)

brainsnap by chuckles mcdagger February 11, 2008

Brainswab 

When someone is clueless and confident about biased information they think they know, they’re considered a brainswab

“That’s not what it means, you brainswab”

Brainswab by dobbyflowers August 8, 2020

Brainsoap 

A clever product thought up by two rather stunning Canadian girls that allows one to wash harsh images and thoughts out of one's mind.

Girl 1: Hahah, what if your boyfriend wore a leotard?

Girl 2: NO. NO. NO. GET THE BRAINSOAP NOW! AHHHHHHH IT BURNSSSSSSSS.

Brainsoap by awesomecanadians February 18, 2011

Brainslap 

The action of open palm slapping someone so hard on their forehead that they feel it in their brain.

"Barry just brainslapped his brother."

"What the heck are you talking about?"

Brainslap by PocketBee May 20, 2023