Theory that as the brain ages it begins to rot away, thus giving way for people to hold more right-wing beliefs as they get older. As right-wing beliefs are inherently nonsensical only a poorly functioning brain could hold them.
Oh, he used to believe in science and factually correct information, but unfortunately right-wing brain rot has gotten a hold of him and now he thinks science is out to get him and extreme weather is the result of gay people having more rights.
by Nihilistic July 13, 2023

A chronic condition spread by Jewish media causing affected patients to seek attention and quirky traits. This usually causes them to take on characteristics that aren't necessarily their own to seem interesting or make new categories that don't exist for their own self indulgence and delusional ideations. Presenting reality and factual statements with the support of science often unfuriates these individuals who meet these statements with hostility. They often have a thin veiled grasp of reality and it physically hurts them to hear the truth
Don't pay any mind to Rachael; formerly Richard... she suffers from Liberal Hair Dye Brain Rot. It causes her to not understand reality unless it's presented on twitter...
by Beef Titan 69 March 31, 2022

by HammyBurger69 January 28, 2025

Friend: I wanna touch your gyatt in ohio
Other Friend: Pls be my sigma bcuz im your rizzler
Friend: dont worry its National Brain Rot Day
Other Friend: Pls be my sigma bcuz im your rizzler
Friend: dont worry its National Brain Rot Day
by CjWithBrainrot May 3, 2024

by Sigmaboy101 July 30, 2025

basically, what happens if a kid from gen alpha said some stuff that is popular in 2023, mostly from either shittok (Tiktok) or youtube shit (YT shorts)
motherfucker: skibidi toilet ohio rizz!!!! youre so sigma!!
black men: what the fuck
motherfucker: holy shit!!! youre not sigma!?!??! youre so alpha male!!!
black men: wtf is this gen alpha brain rot ðŸ˜
black men: what the fuck
motherfucker: holy shit!!! youre not sigma!?!??! youre so alpha male!!!
black men: wtf is this gen alpha brain rot ðŸ˜
by im only good good FUCK YOU NI- November 29, 2023
