blowback

from WordNet (r) 3.0 (2006)

blowback
    n 1: the backward escape of gases and unburned gunpowder after a
         gun is fired [syn: {blowback}, {backfire}]
    2: misinformation resulting from the recirculation into the
       source country of disinformation previously planted abroad by
       that country's intelligence service

from The Collaborative International Dictionary of English v.0.48

blowback \blowback\ n.
   1. the backward escape of unburned gunpowder after a shot.
      [WordNet 1.5]