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English definition of “slave driver”

slave driver

noun [C] uk   informal disapproving us  
a person who makes other people work very hard: My boss is a real slave driver.Bosses, managers and directorsPeople in charge of or controlling other peopleUnpleasant people in generalUnpleasant men
(Definition of slave driver from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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