when your ass is already sweaty from physical activity and you have a really moist fart, causing the sweat to turn a sickkish greenish brown like a swamp.
Oh man, something smells like Hot Swamp Ass

Shit man, that was me.
by Honour de balzac October 9, 2008
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A)One who sits his ass down in his car seat, with out knowing a water ballon was just popped there.

B)Also know as a the gay delievery guy across the street from me or Sir-Fag-Alot.

Me: Haha Sir-Fag-Alot's ass is all wet and know it looks like he pissed himself.

Sir-Fag-Alot: Yo go get your father.

My Brother: Shut the fuck up swamp ass before i smack you in your mouth.
by wouldnt you like to know!?!?1 November 7, 2005
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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
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a place where everyone on the street has swamp-ass.
i asked my girl if she wanted to come over and 6-9. she accepted and soon found she was at swamp-ass drive.
by snaveelyk July 19, 2011
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A type of swamp ass attained at work by somebody afflicted with hemorrhoids, after taking a shit (induced by eating hot sausage @ a local carnival) first thing in the morning then working all day in direct sunlight on an 85 degree day, one usually gets diaper rash following this type of swamp ass if not treated right away.
Greg: "What's that smell & why you walkin' so funny?"

Tim: "I got that shitty swamp ass going on today bro my wife is gonna be pissed when I throw these clothes in the hamper!"

Greg: "You need some man-pons my friend.."
by CADAVER1986 August 17, 2011
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A smelly fluid that secretes from hillbillys after they run after supper
"Man pa, yous sure does smely likes swammp ass"
by Mason Beveridge September 29, 2003
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The act of having sweat pouring everywhere..
Most commonly,
Associated with large womens asses
swamp ass epidemic the
by Mr awesome chosen one the 2 October 26, 2011
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