Joobz means in slang: A greeting similar to “hi”, or “what’s the up” Joobz was originally inspired by the expression “What’s up, jigga?” which is a term that few people in OaklandSan Francisco used to say. The phrase was shortened to “jigga”. “Jigga”, which was originally called “Jagga”, has evolved into “Jagga.” “Jagga” evolved into “Jagz”. “Jagz” evolved into “Joogz”. “Joogz”, eventually became “Joobz”. (in Slang Dictionary, added by Miguel Combs)