What does blowback mean?

blowback meaning in General Dictionary

the backward escape of unburned gunpowder after a shot

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  • the backward escape of fumes and unburned gunpowder after a gun is fired
  • misinformation resulting from the recirculation into the source country of disinformation previously planted abroad by that country's intelligence service

blowback meaning in Etymology Dictionary

additionally blow-back, 1883, in reference to flames in enclosed areas (guns, furnaces, etc.), from blow (v.1) + straight back (adv.). Feeling in reference to transform actions, etc., is from 1978.