Meaning of backfire

Definition of backfire

(noun) the backward escape of gases and unburned gunpowder after a gun is fired
a loud noise made by the explosion of fuel in the manifold or exhaust of an internal combustion engine
a fire that is set intentionally in order to slow an approaching forest fire or grassfire by clearing a burned area in its path
a miscalculation that recoils on its maker
(verb) 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"
emit a loud noise as a result of undergoing a backfire; "My old car backfires all the time"
(adv) in a sensitive manner; "she questioned the rape victim very sensitively about the attack"

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