brain fog 

A state of mental confusion or forgetfulness that lasts longer than a brain fart or brain freeze. Can last daze (sic) to years.

Grandma seemed to be in a brain fog for a couple days last week.

brain fog by yes juanito yes March 6, 2015

brain dick 

When she gets so much dick it pokes her in the brain.

In conversation:
"Why are her eyes like that?"
"I gave Martha that brain dick and she hasn't been able to see straight since. "

brain dick by jaxonsshittercrew August 18, 2019

brain donor 

Extremely stupid person, someone who acts as if they've already donated their brain to science--before they die. Clueless. Dumb as a rock.

OK, what brain donor thought it would be a good idea to leave beer in the freezer overnight??

brain donor by JJRtwu2009 December 17, 2008

brain twin 

A brain twin is your cerebral soulmate. A person who shares the same ideology as you on a variety of subjects from music, books, and movies, to politics, art and culture.

A brain twin may be a close friend or someone you've never met, but whose work and opinions express that of your own.

"I was just thinking that!" or "I was just about to say that!" are common phrases used between brain twins.

OMIGOD. Your favorite TV show is 30 Rock and you read the Huffpo? We are totally brain twins.

brain twin by citizencain March 7, 2011

Brain Marriage 

Brain Marriage (or marriage of brains) is a term used when talking about 2 or more individuals from diverse backgrounds coming together to achieve a common goal, task or project (mostly in business).

at a board meeting
CEO - Project 3.0 is the next big thing. What we need to achieve it is a brain marriage between all of us.

Heads of Marketing, Design, IT and Sales - nod in agreement

Brain Marriage by thewomanfriday October 6, 2019

brain fried 

When your brain feels so overloaded with work/stress/homework that you can't think straight and temporarily don't feel like doing anything that takes too much thinking.

Person A: "Hey, can you help me with math?"

Person B: "I don't know man, I feel brain fried right now.. I just got done with my exam."

brain fried by someboredguy May 30, 2011

Brain Cells 

While you are reading this you are losing braincells. You should stop... Now

Ryan's Brain Cells were lost in a book accident.. He smacked himself in the head with the book.

Brain Cells by RJ Mason January 28, 2018