Welcome to Juggle Hacker, a website which finds hijacks between four handed siteswaps.
When one club passer decides to change the pattern which is being juggled, forcing the other passer to change their pattern too.
A certain type of transition between two different club passing patterns.
For more details on four handed siteswaps and hijacks, see the frequently asked questions.
To generate some hijacks, see the Hijack Generator.