1. n00b 2. new person
3. someone who was just owned in a game, in paticular a mmorpg with pk (player killer)
4. Carebear (a whiney n00b)
Origin - o.O was the look in a players eyes after they have been completely owned. Dazed, confused, and n00bish. This was used frequently in mmorgg games that had a player killer option. It is also used synonymously with the term carebear to describe someone who is unskilled and whiney. It was used extensively since the late ninties in on-line games. The origin is rumored to be from the game Ultima Online in 1996. When a player killed another player the dead player became a ghost. If the dead player tried to type, the message would only appear to other players as: o.O.o.O.o.O.o.O.o.O
I just owned you o.O. You have no clue how to play o.O. You have no skill because you're such a o.O.
Stands for "Care Bear" b/c it is supposed to look like the "Care Bear Stare" The term Care Bear is used to describle generaly lame people in videogames or on the internet.
Synonymous with "noob or newb"
Person one: "Dude, check out these l33t new green pants I just baught"