pandemic brain 

Having a fuzzy memory, including not remembering details or having a skewed timeline, due to being socially isolated or quarantined during a pandemic

I wish I could remember what day it was but I have pandemic brain. I haven't left my house in a week!

pandemic brain by swans1ok April 6, 2020

Pandemic Brain 

A phrase used to describe the phenomenon caused by the quarantine and isolation measures put in place for COVID-19. When someone starts saying weird or out of character shit, doing out-of-pocket unnecessary things or regressing to things they used to like when they were younger during a pandemic, they are probably suffering from Pandemic Brain.

A: My older brother is really stressed out from isolating, he started blasting mr. brightside by the killers last night for no reason. We're not in 2007 anymore!
B: Ah...sounds like he's got the pandemic brain

Pandemic Brain by Yung Doink October 12, 2020