Idiom: Fight fire with fire
If you fight fire with fire, you fight something or someone using a very similar or the same way as they are fighting you.
Example: In the face of stiff competition we had to fight fire with fire and cut our prices.
Idiom: Fight fire with fire
If you fight fire with fire, you fight something or someone using a very similar or the same way as they are fighting you.
Example: In the face of stiff competition we had to fight fire with fire and cut our prices.