The
plural of
scrotum, incidentally, is
scrota. One
scrotum; two
scrota.
"Joe and Bob both accidentally used poison ivy leaves for loincloths; as a result, their penes and scrota became extraordinarily fucked up."
I suspect that the word "scrotty" also came from "scrotum". Healthy men keep their scrota clean, though, so they don't get all scrotty.