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English definition of “buster”

buster

noun [as form of address] uk   /ˈbʌs.tər/ us    /-tɚ/ US informal
used to address a man or a boy you do not like: Cut it out, buster!Friendly and unfriendly terms of address
(Definition of buster noun from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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