An accident or unexpected problem has busted something, like your favorite video game crashing. You can also say someone's plans were busted when they got caught doing something wrong.
When we use the word "busted" it usually means a sudden and surprising event happens, often causing trouble or stopping something from working properly. If you're playing with friends online and the game freezes up, you could say it's busted - nothing seems to be happening anymore. It can also mean someone's been caught breaking rules or doing something they shouldn't have done, like getting in trouble at school for cheating on a test.
(often used in combination with an adjective) Having a certain type of bust (breasts; cleavage).
