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Brian Tumor 

"Brian Tumor" (noun): A highly contagious and profoundly debilitating condition primarily affecting pre-adolescent males named Brian, typically observed at age 12. The disease manifests as an uncontrollable expansion of ego and a dramatic increase in the frequency of unsolicited, poorly timed, and often cringe-worthy attempts at humor. Symptoms include a marked decline in tolerance for other people’s well-being, an overwhelming need to insert oneself into every conversation, and an alarming tendency to dominate social situations with an incessant stream of 'inappropriate' jokes.When you're stuck in a group chat with a 12-year-old named Brian, and he won't stop making terrible puns, interrupting every conversation, and somehow turning everything into his personal highlight reel. It's like his brain is a tumor, growing uncontrollably, with zero regard for anyone else's sanity
Bro, I can't take it anymore. Every time Brian speaks, it's like a Brian tumor of bad jokes and unsolicited opinions. Someone please save us.
Brian Tumor by sawcon May 14, 2025
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Did you have a brain tumor for breakfast?

A phrase made popular by the 1989 movie 'Heathers' and the 2014 musical of the same name. It is very similar in meaning to 'Are you retarded?'.
Heather Duke: Can I be red?

Heather Chandler: Did you have a brain tumor for breakfast? I'm always red

Heather McNamara: I've been looking forward to this all day!
Heather Duke: Did you have a brain tumor for breakfast?

Brain Tunnel 

During passionate lovemaking, two people can establish a connection where it seems as if their minds have connected into one mind, using a “brain tunnel”.
Mia: “WC and I had such intense, amazing sex last night, it was as if our brains connected with each other through a brain tunnel.”
Brain Tunnel by Soup and Fruit June 14, 2019

brain tumor 

a brain tumor is a tumor in your brain. it might kill you, which sucks big time if you get one. which i have.
you can get surgery, but surgery might kill you as well.
i have a brain tumor, and i hate it.
brain tumor by stine August 18, 2005

synchronised brain tumors 

two or more people in a group having all suffering from headaches at the same time
Guy 1: Man I have a headache
Guy 2: Me too, it's killing me
Guy 3: The synchronised brain tumors are at it again
synchronised brain tumors by KeeKz October 29, 2007

Brain Tumor 

What you get when you watch Jake Paul
I have a Brain Tumor

You watched too much Jake Paul
Brain Tumor by Optical_Marz August 7, 2020

brain tumor 

What you get when you come across cancer online.
"I was just on 4Chan, and it gave me a huge brain tumor."