A sexually transmitted infection, first found in bikers. It gets its name from a bike club in England they had to perform oral sex on a prostitute to get into the club. Many would catch diseases.

Symptoms are:
Foul smelling odour from genitals
Discharge from the genitals
Spots around the face and genitals
Discharge from the anus

when you're hungover as shit after a spending a night drunk as a skunk