do lunch vs nosh

do lunch

verb
  • To have a lunchtime meeting, usually at a restaurant. 

nosh

verb
  • To eat a snack or light meal. 

  • To perform fellatio (on); to blow. 

noun
  • Food; a light meal or snack. 

  • Fellatio. 

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