When your in a fun day of gym enjoying a fun game of contact soccer or just pissing around and you get this emense sweat coming on and you start to feel your balls and penis slipping and sliding all over your sweaty legs, then you have a classic case of the sweastys.
sweaty testies= sweasties
Ex. when i went running I had and awfull case of sweasties and had to peal my nuts of my leg like a fruit rollup.
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