blowbackblow‧back /ˈbləʊbæk $ ˈbloʊ-/ noun [uncountable] 
1bad results of an action which were not intended: 
We are now suffering the blowback of the terrible foreign policy choices made by the previous president.2the powder that is sent out when a gun is fired: Other inconsistencies included the absence of fingerprints on the gun and of blowback material from the gun blast.
1bad results of an action which were not intended: We are now suffering the blowback of the terrible foreign policy choices made by the previous president.2the powder that is sent out when a gun is fired: Other inconsistencies included the absence of fingerprints on the gun and of blowback material from the gun blast.