A form of saying you have so much of something, you literally have to say "up the ass." When using "up the ass" pronounce "the" as "thee".
Jeff has baseball cards up the ass.
by Corzocl February 27, 2006
added to make it seem like one has alot of something.
She/He has movies up the ass
by Adrian February 21, 2006
1. A phrase used when someone is bothered by a problem and are acting bitchy about it.

2. When one is offended by what another has said.
1) What's up your ass?
2) Damn she hella took it up the ass.
by OneOutOfMany July 20, 2004
Christina Aguilara was acting all up the ass when Lady Gaga stole her audience.
by dayummsayumm March 13, 2009
the best form of batty sex
serge was poundin on his boy friends ass
by jon July 21, 2003
When you have a big turd hanging around your anus, but you refuse to let it out.
Billy was holding it up the ass in class today.
by Nytesdawn October 8, 2012