When after sitting on something for a long time while working up a sweat or working up a sweat in general your ass sweats to a rediculous amount to the point where your underwear/boxers stick to your ass. Often accompanied by a funny walk.
After playing handball in gym nate had very bad swamp ass.
Logan: nate why are your pants still down hurry up we can't be late to class
Anthony: I recon he has dat dar swamp ass
Nate: airing my ass out, feels good man
Logan: yup I got it too. Sucks
Logan: nate why are your pants still down hurry up we can't be late to class
Anthony: I recon he has dat dar swamp ass
Nate: airing my ass out, feels good man
Logan: yup I got it too. Sucks
by CTU_FieldAgent200 December 8, 2009
Get the swamp ass mug.Man, I bet that fat bitch been sitting in the sun so long in those fat-ass pants she gots herself a serious case of swamp-ass.
by Marko October 23, 2002
Get the swamp ass mug.It was a hot summer day and James was taking a nap. Dave had just got back from playing basketball and had some major swamp ass, so he decided to share the wealth by giving James a swamp asstache!
by nello April 22, 2006
Get the swamp ass mug.The unfortunate occurrence when one's ass gets sweaty, itchy and smelly usually after a low-quality dump or when another dump is impending. This often occurs in hot weather situations. Swamp ass can also occur when one is holding back flatulence or avoiding taking a dump in a filthy bathroom.
I had Indian food for lunch then got all sweaty walking home and have a nasty case of swamp ass. I need a shower and a butt-wipe. Dude I have the worst swamp ass right now but there's no way I'm taking a dump in that place.
by Fred S. Tare May 30, 2014
Get the swamp ass mug.a very sweaty smelly ass
ben's swamp ass was so bad, he had to change his boxers 4 times in a single day. We replied, "holy shit, that's some swamp ass."
by dick head September 18, 2004
Get the swamp ass mug.On a hot summer day or after physical activity when the massive amount of perspiration in your post-rectal region causes great discomfort. Often leads to moist underwear and a terrible odor.
by fantomelt February 23, 2009
Get the swamp ass mug.by Pitt Rules Bitch February 9, 2003
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