Tropical Testicles
It's complicated; When you cum on or near the hair on your crotch, don't clean it up, and you do not take a shower in a day, you get tropical testicles. This also occurs if you cum, don't clean it up, and engage in exercise. It gets its name by the tell tale sign of this ailment; Hot, humid crotch stink.
Jonathan: Yo dude come check this out!
Michael: No way, I can smell your Tropical Testicles from here!
Michael: No way, I can smell your Tropical Testicles from here!