A condition where your butt cheeks/crack feel sweaty, usually after physical activity. The name comes from the fact that, like a swamp, your butt is moist and wet in this situation.
I get a gnarly case of swamp ass whenever I do my daily walk around the park, but drinking a lot of water and chilling out fixes it.
by ProBeb May 09, 2019
by Supparad70 November 25, 2015
An unfortunate condition in which the doo doo chute and surrounding areas are wallowing in the depths of a vile, festering, putrid poo swamp. This generally occurs when the ass isn't thoroughly wiped resulting in odors eminating from the region that smell like a fresh dump.
Vandy's swamp ass reaked so badly that the smell of his freshly unwiped ass could be enjoyed nearly three rows away in the theater.
by Greggie C. February 27, 2008
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 08, 2009
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
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 03, 2006
Steve had a bad case of swamp ass after playing football. If you search for swamp ass, under the image section of yahoo, there will be steves picture identifying who has swamp ass.
by Swamp ass Steve October 24, 2004