knock-down-drag-out
or knock-down, drag-out
[nok-doun-drag-out]
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