Stack
From Juggling and Passing Patterns Wiki
A stack means that consecutive throws land on the same hand.
For example: a zap and a single pass thrown after each other or a single pass followed by a double pass.
- Zap-Pass Stack Practice 5070020
- single-pass, double pass
One other example of such a pattern is Baby Dragon 756, which has the local sequence "Zap, Pass, Self", or "Stack, self".
The Holy Grail only consists of stacks. There are also a couple of solo patterns that consist solely of stacks, namely the Counting Siteswaps lie 12345