"Juggla" may be a reference to the jugular vein - a very vulnerable part of a person's neck.
A "Juggalo" may then be inferred as a person that attacks by going for the throat - a quick and bloody death.
Lyrics from "The Juggla":
Quote:
"Yes, ladies and gentlemen, he is...the juggla
He'll cut your windpipe, eat your face
And slit your motherf****** heart out
You can see this freak show at the world famous Carnival of Carnage
Keep juggling, motherf*****!"
Edited in Later: From the above, it may be fair to assume that "Juggla" and "Juggalo" mean "Cutthroat" - a label used to describe a robber that sneaks up behind a victim and then kills the victim with a knife-slash across the throat in order to steal the victim's money and leave no witnesses.
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