When two people squat with their backs against each other and simultaneously take a shit. This positional adds stability to the normal solitary squat one would do when taking a shit anywhere besides a toilet. This can be very effective when in hostile, or bear territory and need someone to watch your back.
by Barnaclebill September 26, 2011

When there is two (2) cubicles in a bathroom, and both are occupied, in which both occupants are taking a dump.
Man, i just did this sweet work poo, there was some other guy in the other cubicle, so we just double dumped
by JackPackageeeee September 12, 2010

THIS IS THE REAL DEFINITION BTW!
The act of terminating a relationship preceded by defecating upon them.
The act of terminating a relationship preceded by defecating upon them.
The United State of America will pay a handsome sum for Justin Bieber to double dump Paige Conway of North Korea.
by Oooperation pegasus April 30, 2014

When you have skipped a shit one day, so that when you poo the following day, it is a double dump.
Furthermore, the first Portion stinks more as it has festered inside you for some time.
Furthermore, the first Portion stinks more as it has festered inside you for some time.
Hey Lachlan, I'm gonna be late back from lunch!
Why is that, Falvey?
Oh, I have to have a double dump.
You will be a while, make sure you spray!
Why is that, Falvey?
Oh, I have to have a double dump.
You will be a while, make sure you spray!
by NZAP 9041 December 20, 2010

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
by TXHeat August 26, 2013

when one takes a dump eats it and takes another dump that includes the previous dump infused with the secondary dump
by Double Dumper Joe July 31, 2011

While one takes a crap, another sits on the person's legs so they can shit between them. Therefore both can crap at the same time.
by Gihad January 18, 2008
