AOing

stands for Adults Only 'ing
means doing an action which is generally assumed adult only, usually sexually orientated.

"wheres miley and rachy gone?"
"they're AOing"
"what?!"
"yeah they're an item now, didn't you hear?"
"kinky"

by SteTipene January 19, 2010

ao

MMORPG Anarchy Online

by stevo July 3, 2003

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

aos

Adult over Shoulder
or
POSTER
which is another way of saying AOS but a less Suspious way of saying it.
POS

*talking about stuff your shouldnt be, parent or gaurdian walks in to the room* You say AOS

by Kylee Droom August 5, 2006

aos

the definition here in central middle school is afraid of sex

ashley lange is the biggest aos chick i know!

by Kam the man May 10, 2007

ao

All Over. When someone is clingy towards another person, esp. when the other person isn't interested.

I saw Jimmy the other day down at Rock-ola and his ex was AO. She was pathetic.

by ghost August 1, 2003

KIA in the AO

Killed in Action in the Area of Operations. A term used to describe fallen soldiers in the military area of operations.

"We've got 2 kia in the ao" - Stonemountain64

by waffman November 25, 2013