a fight, argument, contest, etc., open to everyone and usually without rules.
any competition or contested situation that is disordered, impulsive, or out of control
: a free-for-all at the buffet table.
any enterprise or field of endeavor in which
various companies, countries, participants, etc., compete without restriction: a price-cutting free-for-all among local stores.
1. brawl, fracas, scrap, melee, donnybrook.