Busta Share definition Flag A busta is somebody who ruins things, be it robberies at pizza places or attempting to follow a train. "CJ, you a busta!" Busta by Doctor Hound January 21, 2013 Words you can keep railfan mug chonk mug chud mug based mug 67 mug slime mug mogging mug chopped mug thot mug glazing mug huzz mug yams mug larp mug unc mug cracked mug simp mug baddie mug bop mug lolcow mug