when a person doesn't wipe there ass good, then gets very sweaty, and the swamp runs down there leg.
I just took the biggest dump of my life! We need to practice for cross country. (10-15 minutes later) Damn! I've got the swamp ass!
by dsac 101 August 31, 2010
by Knic57 October 12, 2017
by King Swampy January 18, 2018
by shanehole June 28, 2016
by tgaz August 06, 2016
When you hold in a poop in a car with the seat heater on and your poop starts to water down and it runs down your butt.
by shit mc D May 15, 2015