A condition around the anal area which results in pain. Usually associated with lack of bathing, or uncommonly elevated temperature in the anal area. See Diaria.
The soldier had swampass after being in the desert for 10 days without a shower.
while your running....your ass may seem happy....sooo happy that it starts "dripping" or ..."pouring" out fluids of who knows what origin...it makes people slip and slide all over........mmmmmm swamp ass
oh great.....ive got a classic case of swamp ass.....again...."oh, whatch out...dont slip in that"