A master use of the English language, "O_O," definitely not to be confused with "o_O" is a popular emoticon used with instant messaging and Internet Relay Chat (IRC). In fact, ChatZilla, a popular IRC client, even has an emoticon for "O_O," which has been deemed by many "O_O" fans as downright hilarious.

"O_O" is usually used after and between perverted statements, as well as after surprising or shocking statements. Though it may hard to believe, if one is exposed to "O_O," it is usually very hard not to use the emoticon again due to its attractiveness.
<Christina> Potter, may I have the commands if you have them O_O
<Potter> Tell me when you've added one for Lanta Jones. O_O
<Potter> oh
<Potter> sorry O_O
<Potter> DON'T HATE ME. I'M ONLY 11.
<Potter> O_O
<Potter> jk O_O
<Potter> found it O_O
by Jeremy Daniels July 8, 2007
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You have entered Chat 01
User1: Hey. I got something to show you!
User2: Okay. What is it? Use your cam.
User1: Nah, not my cam. Here it is.
User1: o_o _|_ Fuck you.
by Mirosui Onitsaki June 1, 2005
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concerned or confused.
o: eye
_: mouth

can also be written as:

o_o"
1: *says really concerning or confusing thing*
2: "o_o you ok"
by idefineemoticons October 3, 2020
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Very shocked and/or surprised.
"HI!"

"O_O! That scared me.
by Saetern May 10, 2018
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Batman's evil son. Particularly renowned for being famous among the undergrounds of London, and being a fantastic trivia player.
Wow man, he's a regular little ^o_o^!
by Batman's Son October 28, 2008
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Symbol on film Rewind buttons found on many cameras.
by J.A.H. October 15, 2003
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1.) O_O Shock
2.) o_O, O_o Confusion
1.) A: O_O Are you kidding me?
B: Yep. I have no more.
2.) A: Now you get it?
B: o_O
by jonathan8684 May 18, 2018
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