Learn how to say Backfired correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word backfire:
1(of a vehicle or its engine) undergo a mistimed explosion in the cylinder or exhaust:
a car backfired in the road and shoppers ducked instinctively
2(of a plan or action) have an opposite and undesirable effect to what was intended:
overzealous publicity backfired on her
1a mistimed explosion in the cylinder or exhaust of a vehicle or engine:
once the engine is running smoothly, a backfire can be dramatic
2North American a fire started deliberately to stop the progress of an approaching fire by creating a burned area in its path.