BUILD A FIRE UNDER

{v. phr.} To urge or force (a slow or unwilling person) to action; get (someone) moving; arouse. * /The health department built a fire under the restaurant owner and got him to clean the place up by threatening to cancel his license./

{v. phr.} To urge or force (a slow or unwilling person) to action; get (someone) moving; arouse. * /The health department built a fire under the restaurant owner and got him to clean the place up by threatening to cancel his license./