Smooth Brain 

It’s giving idiot, stupid, the incels of the world. The opposite of someone who can utilise their brain, no grey matter, nothing.

Shan is so smooth brained

Smooth Brain by ShanHater47 January 13, 2024

Smooth brain 

Smooth brain is an insult that refers to an unintelligent person. Supposedly, the intricacy of one's knowledge is represented by the wrinkles on their brain. If their brain is smooth and lacks wrinkles, their knowledge lacks intricacy, and they are therefore stupid.

What a smooth brain that person is.

Smooth brain by GenericGuy3456 May 25, 2024

Smooth brain 

A derogatory term used to describe an individual perceived as lacking intelligence and exhibiting quickness to anger. The term is inspired by the koala, a mammal known for its aggressive behavior and cognitive limitations. Despite having a diet exclusively consisting of eucalyptus leaves, a koala might starve if presented with pre-picked eucalyptus, underscoring the reference to an extreme lack of problem-solving ability.

She kept arguing that the Earth is flat, and everyone started to realize she might just be a smooth brain.

His blind support for the Republican Party’s climate change denial made him seem like a smooth brain, ignoring overwhelming scientific evidence.

Smooth brain by Truebeing May 30, 2024

Smooth-brain 

A derogatory term used to describe someone after they have done something unintelligent, clumsy, or foolish. This term implies a below average intelligence due to an abnormally shaped brain. The expression is used almost exclusively for criticism.

Dude 1: Hey, did you hear that Mike literally got in an accident with a parked car yesterday!
Dude 2: Ya, I cant believe it. What an absolute smooth-brain.

Smooth-brain by Mike N. Ike April 3, 2019

smooth-brain 

crazemazec#1738

wow, craze is a propa smooth-brain

smooth-brain by Ginju April 13, 2022

smooth brain no weinkles 

Smooth brain no weinkles. The way to spell wrinkles while having the smooth brain.

Guy 1: smooth brain no weinkles.
Guy 2: what

smooth brain no weinkles by Probot 99 November 29, 2020

Smooth brain hours 

When you are feeling particularly dumb during a studying session you are experiencing smooth brain hours.

Having a smooth brain is a sign of little to no intelligence, animals such as the koala bear, rats, and Magga have an extremely smooth brain and therefore are quite unintelligent.

"Hey Theodore I can't seem to find the solution to this math problem"
"No wonder Guni just look at Maggie in the corner over there counting cards, we are deep in the smooth brain hours"
"Ahh I feel it in my veins"
"The only way out is to embrace it and wait it out yung one"

Smooth brain hours by The_Carrot_Man May 8, 2021