bust up

phrasal verb

Definition of bust up

 (Entry 1 of 2)

informal
1 : to end a relationship with someone Their marriage busted up after three years. Didn't you hear? They busted up.
2 : to cause (something) to end His gambling problem busted up their marriage. The police busted the party up.

bust-up

noun

Definition of bust-up (Entry 2 of 2)

informal
1 : the end of a relationship, marriage, etc. : breakup the bust-up of their marriage
2 British : a very bad argument or disagreement : quarrel or fight They had a bust-up over money.

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