1 definition by leemo20

Top Definition
When taking a dump, a swamp monster is when you have diarrhea with the exception of one large turd. The turd then lurks beneath your brown-green diarrhea as a swamp monster would in a swamp.
guy one: dude i had a major swamp monster today!

guy two: nuh uh dude thats sick! did you name it?

guy one: yeah..shitzilla
by leemo20 September 05, 2009
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