knock-down-drag-out
adjective/ˌnɒk daʊn ˈdræɡ aʊt/
/ˌnɑːk daʊn ˈdræɡ aʊt/
[only before noun] (North American English, informal)- (of a fight or an argument) very aggressive and unpleasantTopics Opinion and argumentc2
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knock-down-drag-out