fire (redirected from lighting a fire under)

See:

add fuel to the fire add fuel to the fire/flames a baptism by/of fire be no ball of fire breathe fire come under fire draw (someone's) fire draw fire the fat is in the fire fight fire with fire fire a shot across someone's/the bows

fire in your/the belly fire off something fire/shoot blanks get on like a house on fire go through fire and water hang/hold fire have [a few/a lot etc.] irons in the fire hold someone's feet to the fire in the line of fire jump out of the frying pan (and) into the fire keep the home fires burning

light a fire under someone light your fire open fire (on someone/something) play with fire not set the world on fire set the world on fire several irons in the fire There's no smoke without fire. under fire where there's smoke, there's fire