unwarranted self-importance 

A serious form of narcissism. To act as if one is an important person without actually doing anything worthwhile to prove it, thus making one look like a complete tool.

Sometimes abbreviated as USI.

Idiot: Hey guys! I just put up all these sweet pictures of myself on Facebook, and I've got this vlog that you've gotta check out. If you don't, you're clearly some kind of lesser being, 'cause everyone loves me for no reason!

Smart Person: Sounds like unwarranted self-importance to me.

unwarranted self-importance by IrishBarbarian January 23, 2011

unsay 

When you say something you regret saying and wish you could unsay it.

I wish I could unsay that your ass looks big in that dress.

unsay by Nonflyingfarang January 16, 2014

Ungayed 

When someone was gay before but isn’t anymore.

I ungayed her/him.

Ungayed by Ruben Lorenzana Jr July 6, 2018

Uways 

A very awesome, intelligent, young male figure.

Wow, This dude is such an ''Uways.''

Uways by Very Awesome Uways October 12, 2020

Unwana 

Best friend anyone could ask for, can be chill and give attitude when she wanna. Tells you how it is and gives great advice. Probably west African.

Person 1: Besties Westiesssss love you girl
Person 2: Unwana’s my Bestie fuck outta here

Unwana by “Your Pseudonym” July 3, 2019

Unwhy 

A popular social media influencer

Unwhy

Unwhy by Unwhy November 10, 2020

Unwashed Willy 

When someone goes on Omegle and tries to flirt with random girls for no other reason than the fact that they are so horny it can be felt radiating off of them.

Willy: “Hey, what’s your blood type?”
Shen: “Oh no, he’s pulling a Unwashed Willy again”

Unwashed Willy by LargeDavid April 5, 2021