A phrase used in response to someone suggesting that you do something.
Dave: "Should I down this bottle of vodka, hold the last swallow in my mouth, smoke a cigarette through my nose, then jump in the pool and swim across underwater?"
John: "Bust it."
OR
Andy: "I know I've had a lot to drink, but that chick with the enormous fupa looks pretty hot, I think I'd enjoy licking her undercarriage."
John: "Bust it."
OR
John, holding up a full glass of beer: "Bust it?"
Kelly: "BUST IT."
dam son look at that busted chick, she fell off the ugly tree and hit every branch on the way down
When something is just so good
Chef: Yo is it busting?
Man: bro... that shit was so fucking good
literally awesome, indifferently insanity
Bruhhhh this food is absolutely busting