Definition of give someone an inch and he or she will take a mile in English:

give someone an inch and he (or she) will take a mile

proverb Once concessions have been made to someone they will demand a great deal: she stared back at him, refusing to give him an inch
More example sentences
  • Never lend Mike any money, he is something of a kind that you give him an inch and he will take a mile.
  • You give her an inch, she'll take a mile. Next thing you know, she's expecting you to clean up after yourself, pick out your own clothes for the day, and even flush the toilet.
  • And he's proven in the past that, if you give him an inch, he'll take a mile.
See parent entry: inch

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Word of the day guzzle
Pronunciation: ˈgʌz(ə)l
verb
eat or drink (something) greedily