backfiring

(verb) come back to the originator of an action with an undesired effect. Synonyms: backfire, backlash, recoil. Example: "Your comments may backfire and cause you a lot of trouble."

(verb) emit a loud noise as a result of undergoing a backfire. Synonyms: backfire. Example: "My old car backfires all the time."

(verb) set a controlled fire to halt an advancing forest to prairie fire. Synonyms: backfire.