nosh vs refreshment

nosh

noun
  • Food; a light meal or snack. 

  • Fellatio. 

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

  • To eat a snack or light meal. 

refreshment

noun
  • A light snack or drink. 

  • The action of refreshing; a means of restoring strength, energy or vigour. 

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