peng vs supersonic

peng

noun
  • A legendary enormous bird. 

adj
  • Physically or sexually attractive. 

  • Of the highest quality; excellent; splendid. 

  • iced; with ice added 

supersonic

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

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

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

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