backfire

Definitions

General English

Cars & Driving

  • noun an explosion either at the wrong time in the cylinder, or of unburnt or only partly burnt mixture in the exhaust system, causing a loud bang
  • verb to make a loud bang as a result of unburnt or only partly burnt mixture exploding in the exhaust system or in the cylinder

Military

  • noun
    (written as Backfire)
    a NATO name for a strategic variant of the Soviet-designed TU-22 medium bomber aircraft (Blinder)

Slang

  • verb to fart. A term which is in use in Australia and has been heard occasionally in Britain, especially among schoolchildren, since the 1950s.
http://www.dictionarycentral.com/definition/backfire.html