The sound made when a superior being gets so mad that lazer beams actually shoot out of their eyes. This normally results in the destruction of the being's intended target.
Person 1: "Jane I really hate your face, you should consider wearing a bag"
Person 3: "O snap that b*tch is dust now"
Bob: "I haven't seen Shirley around lately.."
George: "O you didnt' hear?! That betch totally got bewed."