play with fire

add fuel to the fire

To worsen a conflict between people; to inflame an already tense situation.

ball of fire

A person who is especially active, ambitious, hard-working, or high-achieving.

catch fire

To become engulfed in flames, to combust.

child's play

Something particularly easy or simple.

draw fire

To create a distraction that allows one's friends, co-workers, or other associates to gain an advantage over the distracted party.

escape fire

An unconventional or counterintuitive solution to a difficult problem.

feed the fire

Synonym of add fuel to the fire.

fight fire with fire

To respond to an attack with a similar or identical counter-attack (e.g. to respond to gunfire with reciprocal gunfire).