AOS

short for "ahead of schedule"

"we made a pit stop to grab some munchies and gas, and STILL we made it there AOS!"

by Bonzai April 3, 2007

AOS

AOS is short for Academy of Science, aka "Academy of Swag". It's a Loudoun County Public School. The members attend their home high school, like Stone Bridge, Broad Run, Briar Woods... on one day and AOS on the other. It's the best of both worlds!

Woah, you go to AOS? You got swaaag.

by nerdygirl:) October 26, 2011

AOS

Army of Skanks-
used commonly to refer to a group of bithcy slutty girls at the Potomac School. class of 2011

person1: "did you see the AOS at Bobby's bat-mitzah last night?"

peron2: "yea. they are such skank-whores grinding with all of the guys there."

by an innocent victim June 17, 2007

AOS

A gang that reps Flushing, Queens, a.k.a Flushtown, Always on Sight, or some shit like that. They got some valid music too so listen to dat shit

Guy 1 "Yo bro, AOS dropped some new shit"
Guy 2 "I gotta listen to that"
Guy 3 "AOS is ass and big K"
Nobody heard from Guy 3 ever again

by guyfromsomewhere January 7, 2019

AOS

All Options Suck - None of the possible choices or outcomes are desirable.

We can spend Christmas at your parents or at my parents? That's an AOS scenario if I ever saw one.

Freqently the choices open to us in life are AOS. The only thing you can do is pick the least sucky one.

by Stephen McVay January 14, 2004

AOS

Short for "Age of Shadows" - the version of the popular online MMORPG Ultima Online that moved focus more onto what items the player has in his inventory than his actual skill.

Ultima Online: AoS completely took away any skill involved whatsoever in PvP combat.

by Ultima May 27, 2004

AO

Area of Operations. Army-speak.

When the General showed up at the barracks it was time to unass the AO.

by Parnelli Joneser May 8, 2005