Blow an O-ring

Taking a huge shit to the point that it makes your anus hurts for hours afterward.
A bit of a rip on Challenger's explosion due to a bad O-ring.

"Dude, all that Chinese buffet is going to make me blow my O-ring."

Guy 1 "Why are you walking like that? Did you just Blow an O-Ring? "
Guy 2 "Ate some nasty food the other night...God it hurts!"

by HankHill August 7, 2008

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o ring blowout

From massive amounts of anal sex, sphincter muscle becomes so loose that ones shit falls out staining ones socks.

Bruce was speed-walking in the park Monday morning after a long weekend in Palm Springs, when he suffered o ring blowout. His butt hole opened the size of a fist, and a turd fell out staining his left sock.

by Bald Mikey December 30, 2011

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O Ring

another name for the Cervix

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

by Jay Alexander March 4, 2004

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blow an o ring

taking such a tremendous shit that it feels like ur asshole just blew out...

oh man, that was one explosive shit, i think i just blew an o ring..

by HoMeS March 12, 2004

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o-ring

A fleshy piece of skin removed from one's penis upon circumcision. Usually worn on a chain around one's neck, symbolizing coolness off the heezy fo' shizzle.

"Yo dog, dat 98,127,364 Carat o-ring is da shit fo shizzle. WERD!"

by Harvester August 19, 2003

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