- bust up phrasal
- verb informal
1 (I) to argue angrily and stop being lovers, partners, or friends: They bust up after six years of marriage.2 (transitive bust something up) to prevent something from continuing: Angry protesters bust up the meeting.3 (transitive bust something up) AmE to damage or break something: Hey! Don't bust up my bar!-see also: bust-up 2 noun (C)1 a model of someone's head, shoulders and upper chest, made of stone or metal(+ of): a bust of Beethoven2 a woman's breasts, or the part of her clothes that covers her breasts3 a measurement around a woman's breast and back: Do you have this bra in a bigger bust size?4 informal a situation in which the police go into a place looking for something illegal: major drugs bust3 adjective (not before noun) informal1 go bust a business that goes bust cannot continue operating: Dad lost his job when the firm went bust.2 broken: The television's bust again.
Longman dictionary of contemporary English. 2004.