A phrase denoting one's unsurprised exasperation with a person and/or situation. Equivalent to rolling your eyes and throwing your hands into the air. Often said among friends who act in ways that are just so "them."
Staver: "If I were a pickle monster, would you be my piglet baby?"
Austen: "Hoy shaboy."
Jesse: "New York is the capital of all that is good and holy on this earth and anyone who says otherwise is a bitch terrorist!"
Aleks: "Hoy Shaboy."