Double Dumpkin 

Simultaneous oral sex performed by a male and female in the 69 postition, while both parters also defecate. This is a rare combination of the blumpkin and the cunnilumpkin.

Note: The homosexual male and female versions of the double dumpkin are properly refered to as the double blumpkin and the double cunnilumpkin, respectively.

Hey baby, I need to drop a duece too - lets do a double dumpkin!

Double Dumpkin by Mental Pickpocket October 30, 2004

Double Dumping

When you take a dump in a public restroom only to find out your stall is out of toilet paper and have to switch stalls to one that does

Check the stalls for TP to prevent Double Dumping

Double Dumping by TXHeat August 26, 2013

Double Fudge Dumpling 

Engaging in sexual intercourse while simltaneously shitting on the toilet.

The passion of our thrusting, coupled with the texture and aroma of our respective fecal matter, made it the best double fudge dumpling of the week.

Double Fudge Dumpling by man... February 27, 2007