o-ring 

1. (slang) sphincter
2. (normal) a rubbery gasket used to seal a connection between two pipes. The o-ring is squished between two flanges, forming an air-tight seal.

Don't push too hard or you'll bust your o-ring.

o-ring by Khashishi April 20, 2010

O.O 

You probably typed this because you were bored and therefore clicked on the first link on your search engine which is how you are reading this and you probably know what it means, If not, then continue reading below :)

It means to be suprised, like this ---> O.O <--- (eyes open wide)

Or to be looking at someone in a "one eyebrow up" kind of way like this ---> O.o <--- (It may be flipped to this ---> o.O <--- although It does means same thing) it's a way of saying "whaaat?" or "I don't know what you're talking about" or even "don't look at me, I don't know!"

Or it can mean "I'm confused and don't understand the current situation" like this ---> o.o <--- (eyes wide open but sort of small and hidden) this may be due to confusion or maybe simply trying to look cute.

Hope this helped...Everyone has their own opinion of what it means :D <---Happy face haha :D

Look above o.o!!!

O.O by NKSHARPSHOOTER (N.K.) August 2, 2011

O'Marra 

A town just north of Fort Worth Texas US.
The town was famous for it's horses and a young European poet Laura.
O'Marra become a slang in Texas in the mid 1970s during the Vietnam war. It was used by college students to signify their intellectual pursuits. It also have the meaning of having a free spirit like our admirable friend - horse.
Nowadays the term is widely used in the underground scene.

I'm O'Marra!
I love horses, dogs and other animals, I'm also very smart, I'm a O'Marra.

O'Marra by ila vucic April 9, 2008

o-mighty 

A store of based off of drugs and awesomeness.

I can't wait from my 'Diet Cunt' shirt to get in from O-Mighty.

o-mighty by Selfie God September 1, 2013

O'Reilly Factor 

A bunch of ignorant shit that is said, not backed by the truth, but spreads anyway.

The O'Reilly Factor: "If the Americans go in and overthrow Saddam Hussein and it's clean, he has nothing, I will apologize to the nation, and I will not trust the Bush Administration again, all right?" -on finding weapons of mass destruction in Iraq, March 18, 2003


http://www.youtube.com/watch?v=beJ9yJpR_DA

Props to sxephil for the definition

http://www.youtube.com/watch?v=MdIU29wUCKw

O'Reilly Factor by JDay January 22, 2009

O Yea

A word used when u are feeling emense enjoyment. Usually said during masturbation.

O Yea that feels so good. Don't stop left hand. Don't stop.

O Yea by The Blob January 29, 2005

O_O 

When online, used to express a state of utter wtfness, or when you simply cannot believe the stupidity of what the person above has just said. It kind of reminds me of a paralysed frog.

Person: OMGWTFBBQ, lawlorz i sooooooooooooooooo pwned
joo /\/00b!!!1 1!1!1!!1im sooo awsum!!111!11one!!! !11!!!!eleven!!! "11!"211! LOLOOLOLOLOLOLOLOLOLOL LOLOLLOLOLLOLIPOP

You: O_O

O_O by Master of Contradictions October 7, 2007