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

Batpenis

When the dick is so bad and sickening , it’s contagious

Dylan- aye I got batpenis

Batpenis by Ratchetcumsock69 April 10, 2020

buttgeist 

From the English "buttocks" and Germanic "geist" = ghost.

The haunting, stretched, sort of thin, really, feeling your wife's ass has after you cum in it (magnificently) and pull out.

Sweating, back arched, face flushed, Shana felt the metallic emptiness of the buttgeist as Jack pulled out of her ass.

buttgeist by Dickless May 8, 2008

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

buttpiss 

1. Literally expelling urine from one's ass after having the urine injected into the anus during the act of a pistol star.
2. A specific type of diarrhea, wherein the contents of one's ass is expelled in a liquified, piss-like manner.

Paul was buttpissing all night after the girls all gave him a good pistol star.

Grant had to seriously buttpiss the morning after Joey gave him a pistol star for his birthday.

buttpiss by Lovely_Lolita September 1, 2013

buttweenis 

'weenis' is the extra skin on your elbow
'butt' is your gluteus maximus, or for you idiots it's the ass
therefore when combined it is the extra skin on someones glutues maximus.
usually used when insulting someone or just complimenting them.

"you're a fuckin buttweenis!" or "wutssup buttweenis?"

buttweenis by Paloma M. November 20, 2006

butt penis nut hole

The most powerful insult of all time. It should only be used in the most serious cases.

butt - The part at the back of the body in which fecal matter, or rather, shit, comes out of.
penis - A male sex organ, the phallic member
nut - WANK
hole - an opening

The word was invented when a wee lad at the young age of 6 required a grand insult. One that would shrine above all others.

Henry: Fuck you, wanker!
Robin: You're a butt penis nut hole!
Henry: oh shit, I can't beat that

butt penis nut hole by some homeless man August 24, 2017