Australian Brain Freeze 

The "Australian Brain Freeze" is the sex act of putting an ice cube in a vagina. It's named after Australia because Australia is known as the land down under.

My girlfriend's asked me to do the Australian Brain Freeze for her last night. It was horrible.

Australian Brain Freeze by BubblesØ6 May 22, 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

iPhone brain 

When you have a very big brain but in a different way.

Ririka has Galaxy brain.

Kanade has iPhone brain!

You know what galaxy mean?

"Smartphone."

iPhone brain by TransKitten June 1, 2024

mountain brain 

When you are so high in elevation the brain ceases to function at a normal rate. Thus leaving you with dull senses, impaired judgement and stupid grin.

The air is so thin up here that I feel like I have mountain brain.

mountain brain by mygrubbyglory June 19, 2024

Phish Brain 

When someone who listens to Phish has become so brain dead that all they can think about are the Phish lyrics that knocked 80 points off their IQ. These people also do not know how to dress and rarely shower or groom themselves.

I can tell by the dumb look and blank stare at that that dude has Phish brain. There’s nothing going on up there.

Phish Brain by HappyCamper919 June 20, 2024

bozo brain

golf ball

Person 1: yo this guy is a bozo brain!
Person 2: I AM NOT A BOZO BRAIN!
Person 1: caseoh????

bozo brain by sextuagint bambi July 4, 2024