Synchronous, sync
both hands throw at the same time (in synch beats)
Asynchronous, asynch
each hand throws and catches at a different time (opposing beats)
Numbers Juggling
juggling more props than most jugglers ever bother to learn. While this varies from juggler to juggler, most jugglers consider 5+ props numbers juggling, although purist sports jugglers don’t consider someone to be a numbers juggler until they are juggling at least 5 clubs or 7 balls.
Multiplex
Any Multiplex trick is simply based upon throwing more than 1 ball at a time (which means you have to not throw a ball at some point so that when that hand catches another ball, there are 2 balls (or more) to throw). This is intuitively easy to figure out. If you result to performing such an easy trick, you ought to catch at least 1 ball behind the back or do something else extra tricky!
Siteswap
Check out the "Siteswap" link on the left menu for a detailed explanation of this.

If you notice any terms that are unfamiliar to you and you think that they should be on this page, email me and I'll be happy to add them for future users - use the "Contact" link under J.T.U. on the left menu.