backfire
back-fire · verb
Definitions
verb
- 1.
(of a plan or action) To have the opposite effect to what was intended; to rebound adversely on the originator.
- 2.
(of an engine) To undergo a mistimed explosion in the cylinder or exhaust system.
- 3.
(noun) A mistimed explosion in an engine, or the sound it produces.
Related words
Etymology
From English compound of back + fire, originally referring to a fire set to halt an advancing forest fire, later extended to engine malfunctions and failed plans.