Mackaflow in the building

The ultimate roast. There literally is not a roast that can counter this move. Not even no you or your mom. Can be used in any situation by legends. Some say that if you use it enough times you will die.

(Rap Battle)
Guy 1: You're a retard
Guy 2: Haha, no you!
Guy 1: MACKAFLOW IN THE BUILDING
Crowd: *Wild*