O-O 

An anime style smiley used to express shock, or

James: So last night my girlfriend dressed like a catgirl
Drew: O-O

O-O by Darth Seraph June 30, 2006

o.O 

shock, puzzlement, misunderstanding; raised eyebrow, skepticism

generally used in online chatting

WTF?!? o.O

and/or

yea right... o.O

o.O by Merf.... May 11, 2003

o,o 

A face that is like "o.o" except this one has a bit of drool on its mouth

<person 1> "Haha I just got a bunch of cash points to own noob asses"

<person 2> o,o

o,o by Murdercide June 4, 2009

("\(O.o)/") 

This definition bascily means 'Rawr," or in other temrs that some people useing in MMORPGs they say get the **** away from me and I wont PK you.

("\(O.o)/") Get the hell away now, stupid noob.

("\(O.o)/") by Xyeras May 8, 2008

O -,O 

Mesmerized drooling face.

Guy 1: DUDE! Seen that hot chick?!

Guy 2: Yeah... O -,O

O -,O by HagarenOtaku January 4, 2010

o&o 

one and only

you're my o&o bff!

o&o by jadiensiwnwkdj March 26, 2017

O_o 

Surprised emoji. Typically used in informal internet chat.

Example:
Player 1: Where did you go?
Player 2: I fell down a hole.
Player 1: Ok. I'll wait.
Player 2: Wait... WHAT? The treasure chest is here O_o
Player 1: We actually won for once? O_o

O_o by MinecraftVlogMV April 15, 2017