Baby brain 

When your intelligence goes from a high IQ. To an absolute vegetable

Hey what did you do today.

Just some house work I hung out the dishes on the washing line and vacuumed the driveway. Opps I had baby brain

Baby brain by Te-realiest November 20, 2020

molecule brain 

When you've made a mistake that's so easy to not make it, but you still do it, like misspelling brain to brian.

Also is used by peers / friends through gaming sessions when you've doone something stupid.

You have such a molecule brain!
Fuck, I feel like i got a molecule brain.

molecule brain by SmallChames November 25, 2020

Small Brain 

When taken almost literally, it means someone is unintelligent or unequipped to talk to a specific person or about a subject. Although it has ironic connotations to mean that the interlocutor or the person they are speaking with is on another level/wavelength.

Compared to my friend, big brain Bojack, who is simultaneously discussing Kant's Deontology and Quantum Mechanical superposition, I have a small brain.

Small Brain by Jorolb November 30, 2020

Big Brain 

when you send a pic using a filter to Alex English while driving then get honked at because the light turned green and you didn't know that

Wow John is very Big Brain. What a guy

Big Brain by jbr0wn May 26, 2021

P brain

Someone who has smoked a viscous amount of methanphetamine creating a slurry of a brain/ someone with severe down syndrome

Toby the retard says what a lovely day
Reply- shut up P brain

P brain by Jamoneywoney June 3, 2021

Getting brained 

Getting high on cannabis edibles.

After I ate the cookie, I was getting brained sitting on my couch

Getting brained by All Original January 30, 2022

Goon Brain 

A condition in which the brain is underperforming due to drinking 2+ days consecutively.

Cases of Goon Brain are most commonly seen after boys trips or after any other elongated drinking binges have occurred. Many times, Goon Brain victims begin suffering from the condition before a trip has even ended.

People suffering from Goon Brain may take up to 7 days to return to 100%, especially at work.

We’ve been home from the booze cruise since Monday and after 48 hours, Dan still hadn’t noticed he’s wearing two left shoes; I’m worried he have Goon Brain.

Goon Brain by ShitBrainChampion2001 April 5, 2022