Definitions from Wiktionary (Buster)

▸ noun:  (chiefly colloquial, with 'of') Someone who or something that bursts, breaks, or destroys a specified thing.
▸ noun:  (chiefly military slang) Forming compounds denoting a team, weapon, or device specialized in the destruction of the first element.
▸ noun:  (chiefly colloquial, with 'of') Someone who or something that 'breaks', tames, or overpowers a specified person or thing.
▸ noun:  (US, in particular, dated, slang) A broncobuster.
▸ noun:  (chiefly law enforcement slang) Forming compounds denoting an agent or agency tasked with reducing or eliminating the first element.
▸ noun:  (dated, slang) Someone or something remarkable, especially for being loud, large, etc..
▸ noun:  (colloquial, variously expressing familiarity, admiration, or hostility) A form of address, particularly of men: guy, dude, fella, mack, buddy, loser. (Originally as 'old buster'.)
▸ noun:  (obsolete, slang) A loaf of bread.
▸ noun:  (obsolete, slang) A drinking spree, a binge.
▸ noun:  (dated, slang) A gale, a strong wind; (especially Australia) a southerly buster.
▸ noun:  (Australia and New Zealand) A heavy fall; (also performing arts) a staged fall, a pratfall.
▸ noun:  (US, regional) A molting crab.
▸ noun:  (gambling, slang) A cheat's die whose sides bear only certain combinations of spots, so that undesirable values can never be rolled.
▸ noun:  A surname.
▸ noun:  A male given name.
▸ noun:  A male nickname.
▸ noun:  (colloquial, variously expressing familiarity, admiration, or hostility) Synonym of guy, term of address for a man or person.

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