Noun

1. A sculptural portrayal of a person's head and shoulders
2. The breasts and upper thorax of a woman
3. The act of arresting someone for a crime, or raiding a suspected criminal operation: a narcotics bust
4. A failed enterprise; a bomb

Verb

1. Alteration of burst
2. To break something
3. To arrest for a crime
4. To catch someone in the act of doing something wrong, socially and morally inappropriate, or illegal, especially when being done in a sneaky or secretive state.
5. : An emphatic to do

   He busted huge air off that jump!