An annoying and burdensome, but important responsibility or concern that is hovering over you that you have to bear and deal with, albeit begrudgingly.
Yea, I can't go out tonight, I got a shitload of homework riding on my ass.
My job is so stressful because of all the big clients I got riding on my ass.
My job is so stressful because of all the big clients I got riding on my ass.
by Ponsonby Britt December 6, 2010

"Oh shit, my ass is grass"
by Deadheartstealer August 12, 2018

More vocal than anything, Oh my ass is a declaration that you are getting fucked in the anus by a large wanger.
by GhaleonX July 23, 2003

A saying that Gangstas use when in a territtory war and when they need to go from one hiding place to another.
by GangstaSkata June 19, 2011

A sarcastic, silly come back to anything. The person your saying this to should always reply with "I already have !"
Made up by Tammy and Sheleah Guy.
Made up by Tammy and Sheleah Guy.
Sheleah - "MOM, I don't want to go to school today !"
Tammy - " OH LICK MY ASS !!"
Sheleah - " I already have "
Tammy - " OH LICK MY ASS !!"
Sheleah - " I already have "
by HeIIoKitty April 8, 2011

by Stef March 17, 2004
