The Dirty Gun is a sex act donr from behind in which you put 2 fingers in the pussy and 1 in her anus using the same hand.

It is referred to the dirty gun because during the act of ding this you hand look like and upside down gun
Darling can i give you a The Dirty Gun tonight
by Dirty Gun December 18, 2011
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A fast and hard poop! It shoots out of your butt and makes a splash! It smells like nothing and is favored as a meal to giraffes!
"ARGH! A just shitted a dirty gun
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