1 definition by Jesse Higgins
The area in between your ass cheeks will become damp and sweaty and partially lube your ass cheeks against eachother. A very dank, ass-smell will arise from your ass cheeks. The equivalent to MTV's Big Black's "Mud Butt", but with sweat instead of shit.
When a hot day when you exercise a lot, the area in between your ass cheeks will become damp and sweaty and partially lube your ass cheeks against eachother. This is called SWAMP BUTT
by Jesse Higgins January 21, 2007