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
by Pitt Rules Bitch February 10, 2003
When the area of speaking becomes chafed and irritated due to extreme ass wiping and/or sweating and is made worse by having the hangover runs.My name is mud
by Skip Jack September 17, 2005
A fat man's hairy ass. The Swamp is usually not washed for days and therefore has a "swampy" reference when described. depending on how long it has been since the fat man has washed his swamp, there may be forms of life adapting to their new "swampy" environment. One does not have to neccesarily be fat to adapt a swamp, but the extra fat and ass space will allow for more wilderness to grow upon ones anal environment. Caution: the swamp may become thicker and much harder to navigate as one becomes closer to the anal cavity or around the Gooch area.
by KFCZombie July 13, 2008
by TortillaLover August 2, 2015
When the crack off someones butt becomes so sweaty do to strenuous physical activity. Usually takes place in humid areas.
by kronickilla October 6, 2010
A common description of the weather in Southern Georgia, particularly Valdosta, in the American South, in the southeastern United States
My brother was explaining the humidity in Valdosta, Georgia and said "'Have you ever heard of 'swamp ass'?
by 88mphsss July 29, 2011