n. A guy, fellow; a friend.n. A loser, uncool person.n. A staged fall, used in theatrical and film comedy.n. A person, thing, or event that breaks or overpowers someone or something, often used in compound terms, as crime buster, ballbuster, blockbuster, broncobuster.n. Something huge.n. A riotous, dashing young fellow.n. A spree.