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

OS

Object Squad. A squad that forms in 201 and is used nothing more for their body. Some notable people featured in the OS squad are Sid the Sloth from Ice Age and coked up Jennifer Aniston.

OS has arrived, time to shut it down sorry boys, people only, no objects

by nbaboi23 October 20, 2018

Os

The name Os comes from a dutchman rockspider originating from the small town in the Free State named Harrismith. He prowls the streets with his eyes closed but is still watching you so be very wary of this. Normally people with the name Os fall off boats whilst simply cruising off the Cape Point in 50 meters of water.

"watch out, the Os might be watching us"

by Nicliaus Bouwer April 14, 2019

Os

It stands of for oh shit

OS it's the manager

by Hassan 3bod April 21, 2019

Os

Get off TikTok Josh smh...

You're still here? Come on os.

by Antibatty April 29, 2020

os

If their name is Os, they are one of the best people of all time! They also like it wet and sloppy...

“Hey is Os coming to the party?”
“No. He’s staying at home with his girlfriend. You know how sloppy he likes it”

by Dominant whale May 21, 2020

os

A dumbass person whos live depends on tiktok and loves food💖🤩

Os is a dumbass person and a queen

by Ksisisiskskskek May 31, 2020