uin 

You are on tiktok doing the "remove your first and last letter of your name" challenge and your name was Quinn :)

Quinn- uin

uin by Quinntom July 12, 2020

UIN 

Unique Identification Number.
A number that's unique for each person/user/etcetera. Often used in termes including IM-programs etcetera.

- Hey, what's your ICQ UIN?
- 55566677, you can add me now!

UIN by JennyF13 January 6, 2006

uin 

to be of no use

omg she so uin

uin by ayla shayla April 10, 2020

UIN 

Unique Identification Number.
A number that's unique for each person/user/etcetera. Often used in termes including IM-programs etcetera.

- Hey, what's your ICQ UIN?
- 55566677, you can add me now!

UIN by JennyF13 July 26, 2008

uin 

an alien whos so incredibly kind. you are kinda a softie and you're an ambivert.
bonus points if you like flower language

"uin is so cute"
"hell yeah."

uin by dallas deez ni November 22, 2021

Uin 

Someone misusing his true good intentions/love.

He is not dumb, he is just a Uin.

Uin by Senpai Khryss October 25, 2024

uinto 

The perfect guy. He is funny, sweet, talented, and ridiculously hot. He looks older than he is, but when he can act like himself he’s silly and adorable. He is an amazing boyfriend and kisser.

That guy is so hot and funny, he must be a uinto

uinto by rollypolly28191 May 30, 2020