Amnasia 

When you order something online from China and it takes so long to get to your house, you forget what it was.

I ordered a fidget spinner from China so long ago, I had amnasia when I opened the package.

Amnasia by Garcia7 September 22, 2017

Amnosia 

The same as Amnesia but Amnosia isn't medically recognised.

"I may or may not have done it, I don't remember. I have Amnosia."
"You have Amnesia?"
"No, it's Amnosia. Basically, Amnosia and Amnesia are the exact same except Amnesia is medically recognised whilst Amnosia is not."
"Uh huh.."

Amnosia by gory the snool November 20, 2017

Repetitive Familiarity Amnesia 

The inability to remember if you did something you do every day.

Every morning when you leave the house, you push the button on the garage door remote closing the garage door. Then 10 minutes later, you can’t recall if you closed the garage door because you do the exact same action at the exact same time every morning, so they all blend together and you couldn’t tell if your memory was from that morning or any of the previous mornings where you went through the same motions like you have countless times before. You just experienced Repetitive Familiarity Amnesia.

Repetitive Familiarity Amnesia by TheChrisenator July 20, 2021

selective amnesia 

to benefit oneself by pretending to forget.

"Dude, if I loan you this twenty dollars please pay me back. Don't come down with a case of selective amnesia on me."

selective amnesia by Mack C January 21, 2007

Post-Amnesia

(noun) - When someone makes a comment regarding a post on Facebook or tweet that you completely forget about.

Jody: So did you end up all wet this weekend?
Chuck: Excuse me?
Jody: Yeah you facebooked it was raining at your cabin.
Chuck: Ohh riggghhhhttt... Sorry, Post-Amnesia

Post-Amnesia by ITALUS September 12, 2011

Nostalgic Amnesia 

noun; a state of mind where one experiences a pleasant glow due to a combination of reminiscences of a past time, and completely forgetting how rubbish that time was whilst you were originally experiencing it.

Nostalgic Amnesia had set in, and Frodo found himself pining for the glory days in Mordor.

Nostalgic Amnesia by Dr Winterbourne February 21, 2009

amnosia 

It's like amnesia but not scientifically accepted

I have amnosia, I don't remember anything

amnosia by Handsome Miggle May 15, 2019