sack rash
The red raw rubbing of the scrotom by over exuberant ball bags, usually found when running or shagging unfeasibly fast - like a minx!
"Anybody got any vaz, or knacker talc as me sack rash is buzzin'"
hairy sack rash
A rash around the ball sack region, causing itching and weeping, causing intense pain!! ARGH!!!
Man, my balls are so sweaty, I think they are sticking to my leg! I must have Hairy sack rash. Or "HSR" as its better known.
Ball Sack Road Rash
when you fall out of a car, bike, etc., and scrape your balls on the floor
Man we were going 80 and i fell out of the car. Got some major ball sack road rash you gotta see.