A four-ball juggling
pattern which, instead of following a fountain
pattern, follows a warped cascade
Basically, one of your hands throws 'fives' all the time; that is, throw to the same height as you would when juggling the five ball cascade. The other hand throws 'threes'; i..e. it throws to the same height as you would when juggling three balls. Unlike the fountain, the balls cross from one hand to another.
This pattern is one of those ones which is very hard to get, but not too hard to perform once you've got the feel for it. I would recommend working up to it by doing a lot of four-ball over the top throws, but there again lots of people seem to get it without much difficulty.
If it helps you at all, the lopsided nature of the pattern makes it feel a bit like a shower.