(noun)

The act of pissing in your girl (or guy)'s ass and fisting out a lump of faeces, then mixing with the urine, while shoving it violently back into the ass, causing a rupture and mix of red, yellow and brown, resulting in a creamy brown mud, then smothering it all over your body then conveying a message to your girl (or guy) saying "Get out of my Swamp!"
Owen: Jesus christ what happened to you Ethan?
Ethan: Well me and my girl got down and dirty and I performed the act of a Dubious Shrek.
by Chinkyboy321 February 16, 2023
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