A phrase coined by the Spice Girls in the late 90's. There really isn't any meaning behind the word as of yet. At least not one. There all different.
Jimmy: "Hey Carl, I really really wanna zigazig ha."
Carl: "Dude, what the hell are you talking about?"
Jimmy: "If you wanna be my lover, you gotta get with my friends."
Carl: "I can't believe you even know that."