backfire vs turbo

backfire

noun
  • An explosion in the exhaust passages of an internal combustion engine. 

  • An explosion in other equipment. 

  • A premature explosion in the cylinder of a gas or oil engine during the exhaust or the compression stroke, tending to drive the piston in the wrong direction. 

verb
  • To fail in a manner that brings down further misfortune. 

  • To fire in the opposite direction, for example due to an obstruction in the barrel. 

  • To experience a premature ignition of fuel or an ignition of exhaust gases, making a popping sound. 

turbo

noun
  • Autofire. 

  • a turbine 

  • A turban shell. 

adj
  • Very, super, etc.; usually relating to a qualitative value (as opposed to quantitative). 

  • Causing or relating to increased speed. 

  • With rapidly-increasing blind levels. 

verb
  • To autofire. 

How often have the words backfire and turbo occurred in a corpus of books? (source: Google Ngram Viewer )