blew ass 

To flatulate - or fart.

Joe and Seth were driving when Joe smelled something gross and asked Seth if he blew ass in the car.

blew ass by Laser Luv May 28, 2007

blew ass rockets 

Totally or outrageously ridiculous...causing anger or contempt.

OMFG! Are you serious? You got a D...yea...that test blew ass rockets!

blew ass rockets by mandaz April 2, 2006

blew my ass out

a phrase used to describe the experience of complete surprise or shock so great that your rectum can no longer contain itself. Used to reference something in a positive, but unexpected way.

Dude, the ending of "Lost" last night blew my ass out!

That Rocky's burger was so good it blew my ass out.

blew my ass out by Toddy D December 24, 2008

Blew out it's ass 

Something or someone has shit itself.

"My damn car blew out it's ass last night."
"Nick Willis really blew out his ass in the 1500 meter final!"

Blew out it's ass by F.O.B number 1 August 15, 2013