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English definition of “knacker”

knacker

verb [T] (MAKE TIRED)  /ˈnæk.ər/ US  // UK slang
to make someone very tired: Don't go too fast or you'll knacker yourself in the first hour.Tired and making tired
(Definition of knacker verb (MAKE TIRED) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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