Battle royal
/ˌbætl̩ ɹɔɪˈæl/
"Battle royal" in a Sentence (2 examples)
I was told that since I was to be there anyway I might as well take part in the battle royal to be fought by some of my schoolmates as part of the entertainment.
Shinty, once a battle royal between villages, is still a far tougher game than hockey, its nearest Sassenach equivalent.