Definitions

1. noun

an unexpected explosion or malfunction of an engine or other mechanical device, typically resulting from a faulty or poorly maintained system.

“The car’s engine had a backfire, spewing smoke and flames out of the exhaust pipe.”

2. verb

to explode or malfunction unexpectedly, typically in a loud or spectacular way.

“The firework backfired, injuring several people in the crowd.”

3. verb

to have an unexpected or undesirable effect, especially a negative one.

“The new policy backfired, causing more problems than it solved.”

4. verb

to fail or be unsuccessful, especially in a spectacular or embarrassing way.

“The comedian’s joke backfired, leaving the audience in awkward silence.”