juggalo
Likely to be synonymous with either 'cretin' or 'retard'.  Exceptions are rare indeed, and are simply a matter of poor taste, and can (thankfully) be educated out of juggalo status.
Look at that juggalo over there - he thinks he's so deep and non-conformist, but he'd got a string of drool halfway to the floor and has a corporate logo, the hatchetman, tattooed on his arm.  God, I hope he's sterile.