What Are Jugglers?

A juggler, JU, double G, LER is a person who throws things up in the air and catches them again. Depending on what they're using to juggle with, that can be dangerous if it's just balls or knives. And when Reza uses the word torch, he doesn't mean with batteries inside. He means with actual fire on the end of a stick. That's also something that a fire eater would use. Maybe we can group fire eaters with knife throwers, swords, swallowers,. What about a human cannonball?