just another word for hi, because im australian i natrually say it and for people who are coming to australia don't try and put g'day in every sentence you look stupid.
A word that bogan Australian's use to greet each other. Not very commonly used in the city areas especially Sydney. It is a beautiful part of the Aussie slang.
aussie 1: *cooking snags*
aussie 2: *walks up to aussie 1*
aussie 1: G'day mate!