hair-trigger vs turbo

hair-trigger

noun
  • A trigger that will set off a firearm when even a very small pressure is applied. 

adj
  • Easily angered; having a short temper. 

  • Unstable; in a situation that could be worsened by the slightest mistake. 

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 hair-trigger and turbo occurred in a corpus of books? (source: Google Ngram Viewer )