o ma ga 

"O ma ga" is an awesome variation on oh my god. This term can be used in dire situations, sarcastic situations, and exciting situations, although its use is not limited to those times. It is also fun to say it randomly.

Person 1: I just got a 98 on my final! :D
Person 2: O MA GA!!!
.
Person 1: I think I lost my cell phone. D:
Person 2: O MA GA!!
.
Person 1: I think you should stop saying "o ma ga" so much. -.o
Person 2: O MA GA... no.

o ma ga by O MA GA! July 31, 2009

O-Zone 

A European group that has one of the world's greatest dance songs ever! Even if you live under a rock- you have probably heard this group's insanely addictive song- popularly known as "The Numa Numa Song."

Boi 1:Dude- I love this song! Who sings it!
Boi 2:Um...a flamin gay European group!
Boi 1:For Rizzeal? Cuz they are my new Bomb Diggity!

O-Zone by Ozone Boi July 2, 2005

\O.o/ 

A sign used in instant messaging to display emotions of confusion, lack of caring, unsuredness, or ignorance, much like a shrug.

Person 1: "Where did you go?"
Person 2: "\O.o/"

\O.o/ by Michael von Preußen April 23, 2009

o_~ 

It's the official pedophile wink. Child molesters use this smiley in chat rooms to attract their prey.

Pedophile: Hi there young lady.
Girl: hi :)
Pedophile: Asl? o_~ No pedo.
Girl: oh sure i give u, u look like trusty person :) smiley make u trusty. 12/f/new york
Pedophile: I come to your house now with candy. I just need your full address. o_~

o_~ by ismellu March 7, 2010

o__o 

1. Similar to the emoticon o_o but with an extra underscore (_).

Upper case Os are used more often to denote more shock than lower case Os.
Generally used in the same fashion (shock, look of bewilderment, blank stare, skepticism, or weirded out). However, the extra underscore is added to denote more stronger emotions.
2. Also may be used when an o_o may not want to be repeated.

1. Person 1: I found out I was adopted
Person 2: o_o

2. Person 1: And that I'm really a robot
Person 2: o__o

Person 1: It all came to me when I fell off a cliff and into a girl's house
Person2: O__O

o__o by Guest3 June 18, 2011

o-dark-thirty 

Military time designating an unspecified time after midnight but before sunrise. Normally used in reference to either the time one goes to sleep, wakes up, or has to be on-the-job. Usually quite a while before sunrise, i.e.: well before 0500 hours ( 5AM for you civilians )

The name is a play on the way 24-hour time is handled in the Military. Times are pronounced as numbers and written without colons, i.e.: 4:30PM is 1630H or "sixteen-thirty hours". Times between midnight and noon such as 4:00AM are written as 0400 and have the leading zero called out as "zero" or the letter "O", as in "o-four-hundred".

Example: We had to get up at o-dark-thirty to get the job done this morning.

o-dark-thirty by Princess Die December 2, 2005

o'douls 

The soberest of competitions -- when one man challenges another to get drunk on o'douls.

I challenge you to an o'douls.

o'douls by goatlove November 9, 2012