barber vs blue pencil

barber

verb
  • To cut the hair or beard of (a person). 

  • To chatter, talk. 

noun
  • A barber surgeon, a foot soldier specializing in treating battlefield injuries. 

  • A storm accompanied by driving ice spicules formed from sea water, especially one occurring on the Gulf of St. Lawrence; so named from the cutting ice spicules. 

  • A person whose profession is cutting (usually male) customers' hair and beards. 

blue pencil

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