Siao "on"

English meaning: Siao literally means "Crazy" in Hokkien. On, is the English word. Means you're up for something.

Actual meaning is: You agree to whatever plan that's coming to you.

Example #1: I'm siao "on" for the movie tonight, for RM20 at a slightly above normal cinema (GSC Signature)

Example #2: I'm siao "on" for the movie tonight, starting at 11.20PM, for the sake of watching the movie on the 1st day release.