look up any word, like cunt:
 
8.
the act of taking a large erectal penis from the back..this action can take place inside either a girl or a boy.and with or without the use of a condomn or personal lubrication.
The lights were off.and i thought i was giving it to my girlfriend up the butt.but it turned out to be my dad.
by B-rad G from d 904 July 06, 2007
 
9.
synonyms include lame, gay, queermosexual, faggot, retarded, bitchonargraphy, up the bum
- Hey guys i bought a pink lacoste polo shirt!
- You are so up the butt
 
10.
when you take it up the butt
Jim took it up the butt
by Adrian June 26, 2003