Informal a rough, rowdy fight or free-for-all
Origin of donnybrookfrom Donnybrook Fair
A melee; a free-for-all. See Synonyms at brawl.
Origin of donnybrookAfter Donnybrook fair, held annually in Donnybrook, a suburb of Dublin, Ireland, and noted for its brawls
Named from Donnybrook, a suburb of Dublin, the site of a notoriously disorderly annual fair.