North American Stimulate (someone) to work or act more quickly or enthusiastically: claiming that Congress doesn’t work hard enough is a good way to light a fire under his colleagues
More example sentences
- They can move mountains with their enthusiasm and energy and light a fire under almost anything.
- I think that lights a fire under the Senators to do their work quickly.
- Meanwhile, the musical subculture Tee helped build is lighting a fire under more traditional DJs looking to add some new sounds to their sets.
Definition of light a fire under in:
- The US English dictionary