Backfire

Definition: the backward escape of gases and unburned gunpowder after a gun is fired

Definition: a loud noise made by the explosion of fuel in the manifold or exhaust of an internal combustion engine

Definition: a fire that is set intentionally in order to slow an approaching forest fire or grassfire by clearing a burned area in its path

Definition: a miscalculation that recoils on its maker

Definition: Alternative spelling of back fire

Definition: come back to the originator of an action with an undesired effect; "Your comments may backfire and cause you a lot of trouble"; "the political movie backlashed on the Democrats"

Definition: emit a loud noise as a result of undergoing a backfire; "My old car backfires all the time"

Definition: set a controlled fire to halt an advancing forest to prairie fire

Definition: To fire in the opposite direction, for example due to an obstruction in the barrel.