os os 

Backwards for so so. Originally from The Simpsons.

Homer: So, how was it?
Bart: os os.
Homer: What?
Bart: That's backwards for so so.

os os by gak September 18, 2008

Os Os 

Verb. To say you're going to do a thing and will be right back, but then forget about getting back and just go to sleep or some other shit.

Guy 1: He said he'd go to the toilet and be back in 5 minutes, but then I didn't see him till the next day.
Guy 2: Dude, he just Os Ossed you.

Os Os by Cthugha August 31, 2025

Temple OS 

The best operating system ever created. Created by our god Terry Davis.

temple os is the best, I have no clue why anyone is running anything else!

Temple OS by Wintier April 18, 2018

OS/2 

An exampe of an Operating System made by a team from IBM and Microsoft in the early ninties. The team broke up and made diffrent versions.

OS/2 is shitzle.
osba.info

OS/2 by nerdman of OsBetaArchive.com May 10, 2005

os-tan 

Os-tans are anime personifications of operating systems as girls. Another name for it them is OS-girls. It all started when some random guy in Japan working at futaba channel thought Windows ME was like a tempermental troublesome girl who did all kinds of stupid things that lacked common sense.

person1: Xp-tan is a os-tan she has really big boobs!
Other person: YOU ARE PERVE!

os-tan by clueless_furball November 1, 2006

os 

A dumbass who does not get off tiktok and loves food

Os is a queen and a foodie💖💖💖

os by Ksisisiskskskek May 31, 2020

opi-os 

Smoke rings blown after inhaling opium.

"I can make opi-os!"
-Ralph Wiggum

opi-os by Thundermonkey1992 November 3, 2010