nosh vs penilingus

nosh

noun
  • Fellatio. 

  • Food; a light meal or snack. 

verb
  • To perform fellatio (on); to blow. 

  • To eat a snack or light meal. 

penilingus

noun
  • Fellatio. 

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