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1.
The residual shit found on toilet paper while wiping after sweating profusely from the anal canal. Usually occurs long after a shit has taken place, and is the result of swamp ass.

See swamp ass.
"I was not surprised to find swamp shit on the paper when I wiped my ass after a long day tending to my garden."
by LosrDogg July 21, 2009
 
2.
The after math of drinking blue skittles (blue koolaid powder,vodka, and mtn.dew) Causing your shits to resemble a brown log with mossy green colored patches.
"UGGGH,my stomach is torn up, those skittles we drank last night gave me the swamp shits!"
by sarahbear3333 November 11, 2012