The coolest, most informal way to say hello or show interest in a person, especially a woman.
Ex1
P1 : wus gucci
P2 : Oh my God, are you_____? Can I have your autograph?
Ex2
P1 (male) : wus gucci
P2 (female) : can I give you a blow job right now? We can go in my car so the paparazzi won't see you.