buttpwn 

1. To aggressively perform anal sex, as if one owned, or pwnd, the butt involved.
2. To express domination in a non-sexual field in this manner, whether or not actual penetration occurs; an augmented form of pwn. To pwn completely or utterly.

Pronounced 'buttpown'. Also, "asspwn" or "pwn butt".

1. I'd totally buttpwn someone if they brought me a pizza right about now.
2. With a sniper rifle and a thermal scope I can buttpwn the whole other team.

buttpwn by hhcftw January 5, 2011

buttpants

Pants or shorts so tight they reveal the shape of the wearer's posterior in provacative detail.

When you first see Ramza in Final Fantasy Tactics, you are at once enthralled by his conspicuous buttpants.

buttpants by Stephanie M. December 14, 2003

buttpinch 

When you're sitting in class and the need to fart overcomes your self control so the gas is expelled through the anus. when expelled you try to stop it with a quick pinch of the anus thus creating a high pitched noise (similar to that of a trumpet) only to be blamed on the asian sitting closest to you.

"Dude, I totally buttpinched in history and blamed xing xing."

buttpinch by Jarcam December 19, 2008

buttpenis 

The unfortunate growth of a sex organ originating from inside the rectum and protruding through the anus.

Eww, dude, you have a fuckin' buttpenis. That's nasty.

buttpenis by Tommy Wommy Womsters May 15, 2003

buttpon 

Def. 1: A device made solely from rolled up toilet paper, resembling a make-shift tampon, which is inserted between the ass cheeks -- however not necessarily plunged into the anus -- to alleviate the feeling of "wet-ass" a person (usually a male) experiences when the feeling of wetness is felt post wiping after a person takes a shit.

Def 2: Butpon refers to the user of an anal-region tampon to alleviate the uncomfortable feeling of "wet-ass" experienced after taking a shit.

Example 1: My little brother came hauling ass outta the bathroom, and a rolled up piece of asswipe fell outta his pant leg, which was of course the aformentioned almighty "buttpon." I was like "what the fuck is that!?" and he then explained his feeling of "wet-ass", therefore the "buttpon" was invented.....

Example 2: "You are such a buttpon!"

buttpon by A-Bomb and Bernadactyl w/ help of "Buttpon Boy," Andrew, A-Bomb's lil bro February 10, 2007

buttpunch 

A punch to the ass which hurts like no other. may cause Assplosion.

dude, im going to buttpunch your cousin.

buttpunch by Hobodownbythelobby May 9, 2008

Buttown 

Also known as anal sex or sex in the butt.

"Yeah I took her to buttown"

Buttown by Lt. Doofy June 9, 2009