backfire >> /ˈbækˌfaɪ(ə)r/
Definition: [intransitive verb] (of an engine) undergo a mistimed explosion in the cylinder or exhaust.
Example: a car backfired in the road
Definition: [intransitive verb] (of a plan or action) rebound adversely on the originator; have the opposite effect to what was intended.
Example: overzealous publicity backfired on her
Definition: [noun] A mistimed explosion in the cylinder or exhaust of a vehicle or engine.
Example: once the engine is running smoothly, a backfire can be dramatic
Definition: [noun] A fire set intentionally to arrest the progress of an approaching fire by creating a burned area in its path, thus depriving the fire of fuel.
Example: Fires were initially started as backfires to blacken areas adjacent to firelines.