knock-down-drag-out

or knock-down, drag-out

[ nok-doun-drag-out ]
/ ˈnɒkˌdaʊnˈdrægˌaʊt /

adjective

marked by unrelenting violence: a knock-down-drag-out fight.
Also knock-down-and-drag-out.

Origin of knock-down-drag-out

1820–30; adj. use of verb phrases knock down and drag out
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019