donnybrook (DON-ee-brook) noun A brawl, a free-for-all.
[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.]
For more about the Donnybrook Fair, click here.
"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.