Meaning of the word "slave driver" in English

What does "slave driver" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

slave driver

US /ˈsleɪv ˌdraɪ.vər/
UK /ˈsleɪv ˌdraɪ.vər/

Noun

a person who makes other people work very hard

Example:
My boss is a real slave driver; he expects us to work 12 hours a day.
She felt like a slave driver trying to get her kids to clean their rooms.