osi 

a girl who is over obsessed with hart styles and one direction that it’s not healthy.

see that girl over there wearing the 1D shirt?

she’s a total osi!!

osi by harrystyles321098 June 3, 2020

osi 

Someone who never listens and embarrass everyone around them

Osi over there is making people stare at us ;-;

osi by I’m that bitch C; June 11, 2020

Osi 

Obeast sad idiot

She’s suck a osi

Osi by Karen from mean girls June 12, 2020

Osi 

A dumb ass bitch who is so fucking depressed and lonely and is always ok TikTok

I don’t want to go see Osi

Osi by hi_im_deperresed July 12, 2020

Osi 

A osi is someone who Loves art, is bi, loves frogs and mushrooms, uses phone 24/7 shy yet popular

1: "hey who's that?"
2: "ohh them? They're a osi aren't they amazing?"
O: "umm excuse me can you not talk about me right in front of me? Thanks."

-based off of real experience (´；д；)

Osi by ʟᴇᴍᴏɴᴄʜɪʟᴅ May 23, 2021

osi

Abbreviation for "or something, idk"
Can be used at the end of a sentence when not being entirely sure or serious about the preceding statement.
The abbreviation originates from a group of former Mario Kart modders

We could meet at the park osi

osi by JakobusVIII July 25, 2026

Ösi

The word is mostly used by Germans (Piefken) to describe Austrians.
Austrians really hate to get called Ösi.

Die Ösis waren früher aber besser im Skifahren.

Ösi by Schorschi aka nix aka December 7, 2020