(n.) after an intense workout, the gooch or taint area becomes sweaty and moist. The sweat coats the gooch hair resulting in a swamp-like feel. Thus derives the name swamp gooch. Swamp gooch is most common when playing sports in boxers.

When the area in or around the taint is so built up with Goochy Goo that it develops its own ecosystem. Usually mold or fungus.