Colon Cleanser 

Craft some anal beads with mentos and insert them up your ass, after about 20 mentos in length roll onto your back and prop your ass into the air; empty a 591mL bottle of diet coke into your rectum. This stimulates pleasure receptors with a bubbly sensation.

My girlfriend wouldn't let me give her anal so I got my revenge with a colon cleanser.

Colon Cleanser by Poutine Pirate May 1, 2010

colon cleaner 

A person who licks ones asshole

You can kiss my ass you colon cleaner

colon cleaner by D-Web December 28, 2006

Colon Cleanse 

The Colon Cleanse is a complex sexual act that begins by inserting Mentos into your partners anus, convincing them that the candies are in fact anal beads. Once five or six mentos have been inserted, the male partner squeezes a bottle of Diet Coke into the female's rectum and plugs her butt with his erect penis. As the reaction between the coke and Mentos commences, the male partner must concentrate on holding his position for maximum explosion, and finally removing his penis from the woman's anus, releasing a whirlwind of Coke-Mentos-Feces-Ejaculate Fluid blend that effectively "cleanses" the colon.

MIKEY: My girlfriends flatulence have smelled quite fresh ever since we performed the Colon Cleanse last night.

JOSTON: Dude, I hope you put some plastic sheets down or something.

Colon Cleanse by jda-grava.1 February 4, 2010