a. A male or female who is cool or awesome or prime. One who keeps it real and is very smooth while doing so. Also can be used to describe an event, place, person, or idea.
b. A type of beer cozy for bottleneck alcoholic beverages.
a. "Damn, that shit is zuba!" or "Those shorties is always zuba."
b. "Hey, Brah! Toss me a zuba for my Zima!"