American Idioms – Idiom Wizard Lists Over 5,500 Idioms & Slang Descriptions

Slave master


Reference to an authority who overworks others. Although modern cultures do not have actual slave drivers, the phrase presents a picture of someone with undue influence over you and forcing more than humanly-possible work. (Compare to Lord over or Heavy-handed.)

“The music teacher is a real slave master when it comes to practice.”

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