piercing vs turbo

piercing

noun
  • An item of jewellery designed to be fitted through a piercing (sense 2). 

  • A hole made in the body so that jewellery can be worn through it. 

adj
  • Appearing to look deeply into; penetrating. 

  • Of sound, loud and sharp; shrill. 

  • Of temperature, extremely cold so that it penetrates through clothing and shelter. 

turbo

noun
  • A turban shell. 

  • a turbine 

  • Autofire. 

verb
  • To autofire. 

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. 

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