scrapper

a person who takes part in a dispute both movie critics are real scrappers, so their on-air discussions of the latest releases are often heated Synonyms arguer, argufier, bickerer, brawler, debater, disputer, fighter, quarreler (or quarreller), disputant, squabbler, wranglerRelated Words advocate, codefendant, defendant, plaintiff, pleader; challenger, contender, contestant, skirmisher; fusser, nitpicker, pettifogger, quibbler