backfire

/ˈbækˌfaɪər/

NOUN

1. A plan or action that produces the opposite of the intended result

An attempt, decision, or course of action that has an unintended negative effect or causes problems for the person responsible.

Describes a plan, strategy, or action that fails and causes an unfavorable result instead of achieving its intended purpose.

The company's attempt to discredit its competitor became a costly backfire.
The new advertising campaign was a backfire that damaged the brand's reputation.

NOUN

A sudden combustion or explosion in an internal combustion engine's intake or exhaust system, often producing a loud popping sound.

Refers to an abnormal ignition or combustion event in an engine's intake or exhaust system.

The old motorcycle made a loud backfire whenever the rider released the throttle.
A faulty ignition system caused the engine to produce repeated backfires.

VERB

To have an opposite or unfavorable effect from the one intended, especially when an action or plan causes trouble for the person who initiated it.

Describes an attempt, plan, statement, or decision that unexpectedly harms the person or purpose it was meant to benefit.

The manager's attempt to pressure the team backfired when several employees resigned.
The politician's misleading statement backfired and damaged his public image.
Trying to hide the mistake could backfire and make the situation worse.

VERB

To discharge or ignite in an unintended direction or at an improper time, as with a firearm or combustion device.

Describes a firearm, burner, or engine producing an unintended discharge, premature ignition, or explosive sound.