Klik-Klak is an passing mechanism invented to pass a joint, everybody knows that situation where you don't know who you wanna pass the joint to. for those awkward moments (cause you don't wanna hurt anybody's feelings) you can use the klik-klak method.
The current holder of the Joint will say klik, the person who wants to receive the Joint next says klak. If multiple people "call" klak the Joint will go to the first responder.
This is the way klik-klak should be used