light a fire under someone Meaning in the Cambridge English Dictionary Cambridge dictionaries logo

Meaning of “light a fire under someone” in the English Dictionary

"light a fire under someone" in American English

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light a fire under someone

to get someone to ​actquickly or ​forcefully, esp. someone who has not been doing enough before: Coach ​tried to light a ​fire under the ​team in his halftime ​speech.
(Definition of light a fire under someone from the Cambridge Academic Content Dictionary © Cambridge University Press)
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