blowback

Noun blowback has 2 senses

• blowback(n = noun.event) backfire - the backward escape of gases and unburned gunpowder after a gun is fired;
is a kind of blowup, detonation, explosion
has particulars: back-blast, backblast

• blowback(n = noun.communication) - misinformation resulting from the recirculation into the source country of disinformation previously planted abroad by that country's intelligence service;
is a kind of misinformation