Springtime is a great time at SwampButt Underwear. All because when the weather turns warm, people go outside, engage in strenuous physical activity and start to sweat. A percentage of men sweat on their backsides which leads to Swamp Butt or Swamp Ass. While this unsightly and often smelly phenomenon is a negative for men who suffer with it, the cash register starts to ring at SwampButt Underwear World Headquarters.