bumfucking 

Exactly what it sounds like.

I got bumfucked today.. man, my ass hurts.

bumfucking by Anonymous June 21, 2003

Butfuckingdundercunt 

This basically is a word that means a very large cunt, or disrespectful woman. A butfuckingdundercunt is to be used on the spur of the moment and not to be used towards anything other than a female.

Woman: Go make me a sandwich!
Man: Shut up you butfuckingdundercunt!

the male took action because the woman actually said to make him a sandwich.... im pretty sure men dont make sandwiches, so he took initiative.

Butfuckingdundercunt by Dylan!!! June 14, 2011

buttfucking 

When you stick your penis up anothers guys ass and do it until you cum. You have anal sex with him.

I had my first buttfucking experience a year ago. It was great.

buttfucking by sonny vitales May 13, 2008

buttfucking 

when liting a cigarette off of another cigarette

buttfucking my friends cigarette was hard but it lit my cigarette

buttfucking by ARF the Trooper February 15, 2008

buttfucking 

when two guys are having hardcore gay sex. one guy puts his cock in his lover's ass.

the hot gay couple was buttfucking all night long.

buttfucking by gaybuttfucker January 9, 2004

buttfucking 

Scott Nelson's favorite way to make new friends.

Yeah man Scott was just buttfucking with Matt and now they're going out on friday.

buttfucking by Krackalackin November 17, 2004

buttfucking 

When two people, most probably women of the eastern influence, drive down the same road, at the same speed, blocking every possible lane. Those people are buttfucking.

Damn nigga, those two chinks hella be buttfucking Almaden Expy all the way to McKean. I wanna shoot them bitches wit mah hand cannon.

buttfucking by Clan Nigz January 16, 2010