Rock brain

When you brain is as useful as a rock.

Man, after hitting that blunt I got mad rock brain.

by Gwilz November 5, 2018

binge brain

When your brain becomes mush in the middle of a streaming binge.

I suffered from binge brain after six straight episodes of “Russian Doll”

by MA Delerium March 2, 2019

Shogoth brained cuthulu spawn

A really good substitute swear word

Person 1: yo mama fat
Person 2: go away you shogoth brained cuthulu spawn

by I behind you March 17, 2019

tomato brain

The mindset you have when you’re talking to your crush and you forget how to function like a normal human being

“Yeah so when I was talking to him, my tomato brain activated and I cackled at his joke”

“Damn that’s rough”

by DumbBitch2.0 April 5, 2019

Big brain meme club

A club of intellectuals exchanging memes during the course of their lunch ( the best lunch which can be eaten at a big brain meme club is a chicken,bacon and mayonnaise wrap.)

Person 1: hey are you going to big brain meme club tomorrow

Person 2: yeah I here it’s the best!

by Izombie and doctor who fan October 4, 2019

Big Brain Syndrome (BBS)

1a: Used when someone is trying to show off their smarts; egotistical
b: When someone does something that lacks common sense;

Bill had Big Brain Syndrome (BBS) when he drew the word itself for the Word of the Day.

by Sasquatch Boi Yeet November 18, 2019

Ashley brain

Temporary lack of brain power; see also blonde moment.

Sorry, guys. I have a serious case of Ashley brain today!

by Hero82 December 5, 2019