donnybrook

n.
An uproar; a free-for-all. See synonyms at brawl.

[After Donnybrook fair, held annually in Donnybrook, a suburb of Dublin, Ireland, and noted for its brawls.]

(DON-ee-brook)

noun
A brawl, a free-for-all.

Etymology
After Donnybrook, a suburb of Dublin, Ireland, where an annual fair was held until 1855. This Donnybrook Fair was known for its alcohol-fueled brawls.]

Usage
"For a split second, you had to wonder if a donnybrook were about to break loose." — Phillip M. Bowman; Lexington Reaction Was As Ugly As It Was Inappropriate; The Post and Courier (Charleston, South Carolina); May 19, 2007.

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noun

A quarrel, fight, or disturbance marked by very noisy, disorderly, and often violent behavior: affray, brawl, broil², fray, free-for-all, melee, riot, row², ruction, tumult. Informal fracas. Slang rumble. See attack/defend.