Uon 

Similar to how the slang word "ion" is used but Uon instead means "you don't."

Uon have to buy Taco Bell if it'll make you poop.

Uon by SlangDefiner May 19, 2016

UON 

This stands for “Undies Only Night” this refers to instances in which, due to temperature or mood, it feels right to only wear one’s undergarments during slumber.

“Oh man *strips to undies* it’s an UON fam.”
“Dawg last night was an UON ya feel?”
“UONs are a sacred practice that can, should, will, and are protected by one’s soul.”

UON by #17croissonicsandwhich June 29, 2019

youon/uon 

2nd person of 'ion'. A shorter, slang way of saying 'You don't'.

Person 1: "Can I go to sleep? I'm really tired, and-"
Person 2: "Yoooo I'm your friend, youon/uon gotta ask. Ion know who fucked you up, but, like, you really dont have to ask."

youon/uon by lilbigballs August 4, 2023

what u on

asking "what's up?" or "what's going on?" sometimes used when someone is mad also.

Joe: what u on bro?
Alex: just chillin dawg, u already know!

Alex: Joe, how u gon' get on my girl like that? what u on??
Joe: That hoe was askin for it folk.

what u on by Joe Weezy May 10, 2006

wat u on 

It means "what are you doing", "what you gonna do today, or later on today. or the rest of the day."

Frank: "Yooo! wat u on tday bro?"
Ramon: "Shit, Just posted, bored af. Y was good?
Frank: "Ha, same lets hit up newport beach tday tho son."
Ramon:"Fasho, Im down, you just gotta drop on tha tank bro"

wat u on by Gizmoe187 April 30, 2013

uonna 

Mythic Rock disco in Rome during the 70s which sported outragious live events and urban feasts promoted by Tazzuti and his Ritter-Tod und Teufel art productions.

Dai, njamo al Uonna? Si, fammi' entra'! Fammi' imbocca'!

uonna by Thor October 22, 2003

U on 

No u backwards, this takes no u to another level

Mega bully: I am the most powerful being in the world! You have a small pp
You: u on
Mega bully: Fucking dies

U on by Mamzmzmskksskzp August 22, 2020