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bust-up

noun

Simple Definition of bust-up

  • : the end of a relationship, marriage, etc.

  • : a very bad argument or disagreement : a quarrel or fight

Source: Merriam-Webster's Learner's Dictionary

Full Definition of bust-up

informal

  1. 1 :  the end of a relationship, marriage, etc. :  breakup <the bust-up of their marriage>

  2. 2 British :  a very bad argument or disagreement :  quarrel or fight <They had a bust-up over money.>


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