The fair was known for its wildness and boisterousness, with frequent brawls and fights breaking out. This association of the fair with chaos and disorder led to the word "donnybrook" being used to describe any noisy, chaotic, or riotous situation.
While the fair itself was eventually shut down in the 19th century, the word "donnybrook" continues to be used in the English language to describe a tumultuous or uproarious scene.