OS

This is an abbreviation used exclusively for games in the Halo series. It stands for OverShield.

p1: wtf? how didn't you die?

p2: I picked up an OS

by Drüd September 1, 2008

osed

A guy with a huge heart but a small dick. A little gay, but he always has to worry about immigration. Overall, he's an amazing guy with a good sense of humor.

Hey Osed where'd you get that nice shirt?

by leftwardsloppingpenis8D May 4, 2017

OS

Slang word for a power up in the popular game Halo 2 means Overshield. Gives you 2 extra layers of shield

"Pick up the OS you wont die!"

by Mex4life1992 November 11, 2006

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!

by Wintier July 15, 2017

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

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!

by clueless_furball November 1, 2006

opi-os

Smoke rings blown after inhaling opium.

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

by Thundermonkey1992 November 2, 2010