O Ring

a rubber ring used for paintballing equipment

my o-ring ripped on my co2 tank...

O Ring by dshfoei September 21, 2005

O Ring

another name for the Cervix

I was Goin' so deep last nite,I think I tapped the O-Ring...

O Ring by Jay Alexander March 4, 2004

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-ring 

Anal muscles.

1. My O-ring is a virgin.
2. If you don't slow down, you'll blow my O-ring!

O-ring by The nazi of Yatzee November 7, 2002

o- ring

Another term for cock ring. A ring of either rubber or leather that is placed around the scrotum and penis to constrict the flow of blood to the male organ, allowing for larger, longer-lasting erections and more intense orgasms. Also worn to make the male pubic region stand out better, making the bulge in one's pants more pronounced so that other men think you have a bigger package.

I used a rubber o-ring that was too tight and my boner wouldn't go down. Now I can't get the fucking thing off.

o- ring by dicklicker May 23, 2003

o-ring 

1.
performed when a girl, especially a bitch, is sucking on your balls; the man, or receiver of the nut-sucking, proceeds to smack the bitch across the face quite hard. But, it is a failed o-ring if the cock smackage does not cause the bitch's, or the balls sucker's, ears to ring. The most effective o-rings will knock a bitch out cold.
2.
to perform an o-ring.

1.
Bruce Lee: That chick jessica keeps giving me shit about her being pregnant but i didnt even stick it in the bitch!
Jose Contreras: Sounds like she could use an o-ring... knock that bitch out and she won't come back to complain to you anymore.
2.
Jose Contreras: Man, I o-ringed that bitch so hard last night she was out for an hour!
Bruce Lee: Thats nothing, ese. I once hospitalized a bitch I o-ringed her so hard.

o-ring by benny b from the bronx November 10, 2004

o- ring

Rectum

Hey buddy don't push out that turd to hard,you'll blow out your o-ring.

o- ring by Ooogalie Boogalie May 22, 2003