Idiom: Add Fuel To The Fire Posted on 25th January 201824th January 2018 by DoubleClick Add Fuel To The Fire: to make a problem worse Example: We are already unhappy, and if the government increases taxes, it’ll just be adding fuel to the fire. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Posted in Idiom and tagged Idiom.