bust up
phrasal verbbust up
- (informal) (of a couple, friends, partners, etc.) to have an argument and separate synonym break up (with somebody)
- They bust up after five years of marriage.
Definitions on the go
Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app.
bust something up
- (informal) to make a relationship, meeting, etc. end in a way that is not gentle synonym break something up
- It was his jealousy that bust up his marriage.