jamais vu 

Looking at something/someone you're familiar with, but having a memory of it, and no recollection of it. Everyone you know is somehow a bit of a stranger, and everything is new - but at the same time, you know it's jamais vu. Extremely confusing, and frustrating.

can't think of any

jamais vu by Old Ben March 19, 2005

Jamais vu 

The feeling or fear that you really should have heard about an Internet personality/sensation/fad/trend before you actually did

I JUST found out about Ze Frank, Wintergatan and Seth Everman, and everyone else is like "duh…" How could I possibly have missed them for so long? Total jamais vu!

Jamais vu by Micinput June 15, 2022

jemais vu 

Sensation of have never been through a situation that is being produced for first time.

Opposite of： déjà vu

Tobias： woah bro, i just had a jemais vu, i had the feeling i never raped anybody before.
Jeremias： because you hadn't idiot

jemais vu by Sepiaa July 23, 2017