BLOWBACK

Definition of BLOWBACK

  1. (noun)the backward escape of gases and unburned gunpowder after a gun is fired
  2. (noun)misinformation resulting from the recirculation into the source country of disinformation previously planted abroad by that country's intelligence service
  3. (noun)Blowback is a system of operation for self-loading firearms that obtains energy from the motion of the cartridge case as it is pushed to the rear by expanding gases created by the ignition of the propellant charge.