townley groupies
A group of weird people, who follow around an older, weirder man, who is called a townley.  The original townley groupies then become obsessed, and try to attract others to follow around their leader.  Many find it embarrassing to be associated with townley groupies.
John: Hey, Dave, Al has become one of the townley groupies!
Dave: Nooooooooooooooooooooooo!