brain fog 

A state of mental confusion or forgetfulness that lasts longer than a brain fart or brain freeze. Can last daze (sic) to years.

Grandma seemed to be in a brain fog for a couple days last week.

brain fog by yes juanito yes March 6, 2015

brain fog 

2 b very very confuzzed and misunderstand everything!

dam i got brain fog now!

brain fog by anno. May 2, 2006

Brain Fog 

When you have such and amazing orgasms or set of orgasms, that your head feels like it is in a fog and you can't think straight.

Dude, my girlfriend has Brain Fog, she just got up after sex and walked into my wall.

Brain Fog by jkuile June 10, 2009

brain fog 

An everyday description of feeling muddled and cognitively slower than expected - normal really - but which following COVID has put on the clothes of medical parlance and has become one of the classic, "I feel it, so it is" non-sequiturs.

In reality, most of us are objectively less clever and sharp than we think, particularly as we age, or get promoted beyond our abilities. That's life, and there's plenty of evidence it's normal. But post 2020, as COVID brain fog exploded, unchallenged. Brain fog can now follow any unpleasant event outside our control, particularly when someone else might be to blame (workplace accident, illness, trauma). Post 2020, it is an unchallengeable pseudomedical term that describes the gap between what we want and the reality of what we are in a harsh and difficult world. Brain fog is perfect weather to hide in!

Co-worker (1): "I need the afternoon off, my brain fog is particularly bad today. I'm so tired I've left the banana on top of the what do you call it. I've never been the same since COVID"
Co-worker (2): ".... better keep my lips sealed - don't want to make her brain fog worse by inflicting a hate crime..."

brain fog by HRHClare April 3, 2024

Brain Fog Buffet

That state of mind where your brain is overwhelmed with too many thoughts and distractions, like an all-you-can-think buffet with no clear choice in sight.

“During finals week, I was stuck in a brain fog buffet—couldn’t focus on any subject for more than five minutes.”

Brain Fog Buffet by Jacob English January 26, 2026

Foggy Brain 

A cognitive delay due to recently waking up. May also be attributed to hunger or anger.

Corey doesn't know what he's talking about, he has Foggy Brain.

Foggy Brain by Dr. John, PsyD March 13, 2013

Brains Foggots 

These are sold in supermarkets in the United Kingdom. They are tinned meat-balls in gravy.

Mum did you remember to buy Brains Foggots today?

Brains Foggots by Kincheap May 13, 2009