"___ outta here!" (3)

(Other definitions for scat that I've seen before include "unwelcome person may hear this" , "Shoo!" , "Go away quickly" , "vocal style?" , "Animal droppings - small silvery fish" .)

(Other definitions for away that I've seen before include "Having started" , "On holiday" , "(Of match) not home" , "Distant or not present" , "At a distance in space or time" .)