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Define Uin Meaning

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

Quinn- uin
By Mala
Uin
to be of no use

omg she so uin
By Gill
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!
By Kathye
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!
By Marty