DIRTPIPE

The first six inches or so of your anal cavity, commonly used during anal intercourse.

To run up in someone's dirtpipe. Can also be used when reffering to deficating; as in "I have to go clean out the old dirtpipe."

by JonDpm July 25, 2006

dirtpipe milkshake

When having unprotected anal sex, upon male ejaculation into the recipient's rectum, an anus-stretched situation may occur that results in the semen dripping out of the rectum. This is known as a dirtpipe milkshake, aka anal creampie.

Alternately, if the recipient wants to, they can squeeze out the semen on command, resulting in a dirtpipe milkshake on demand.

dirtpipe = rectum
milkshake = semen

I spl00ged up in her ass and the bitch gave my sheets a dirtpipe milkshake.

by Nube June 11, 2006

dirtpipe milkshake

A sexual act involving anal sex in which one person ejaculates into another's rectum. That person then proceeds to pass the semen back out of their anus and then eats it.

"She just had a dirtpipe milkshake."

by jl;kjl;jk May 18, 2008

dirtpipe boomerang

When two people push their assholes together and alternately shit into the others asshole, hence boomerang.

Invented by Bill Cosby in 1956.

See also ultimate dirtpipe boomerang showdown

Kevin:"What are you watching?"
Bill:"Two black trannys doing a dirtpipe boomerang."
Kevin:"Pass the KY jelly"

by TheChode April 8, 2007

dirtpipe diva

An adult actress that specializes in anal films...

So Allison and I went back to my place last night, she is a total dirtpipe diva...

by dirty harry 71 November 14, 2013