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English definition of “bust up”

bust up

mainly US informal
verb [T] uk phrasal verb with bust   /bʌst/ (bust or US busted, bust or US busted) us  
to end a relationship after an angry argument: She's bust up with Carlo.
See also
Ending relationships and divorce
(Definition of bust up phrasal verb, verb from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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