spanking vs supersonic

spanking

adj
  • Fast and energetic. 

  • Brisk and fresh. 

adv
  • An intensifier. 

noun
  • An incident of such punishment, or such physical act in a non-punitive context, such as a birthday spanking. 

  • A form of physical punishment in which a beating is applied to the buttocks. 

supersonic

adj
  • Greater than the speed of sound (in the same medium, and at the same temperature and pressure). 

  • Ultrasonic, having a frequency too high to be audible. 

noun
  • An aircraft that can travel at the speed of sound. 

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