Zero: The 37th number on the Roulette Wheel. The pocket on a roulette table. Roulette wheels consist of a single zero pocket, while the American roulette wheels consist of zero and a double zero.
Zero Out: Used for the act of settling an account in full.
Zombie: Refers to a gambler who is devoid of any emotion display.
Zukes: A term used for tips and gifts.