chap vs customer

chap

noun
  • A customer, a buyer. 

  • A cleft, crack, or chink, as in the surface of the earth, or in the skin. 

  • A man, a fellow. 

  • One of the jaws or cheeks of a vice, etc. 

  • A blow; a rap. 

  • A child. 

verb
  • To cause to open in slits or chinks; to split; to cause the skin of to crack or become rough. 

  • Of the skin, to split or flake due to cold weather or dryness. 

  • To strike, knock. 

customer

noun
  • A patron, a client; one who purchases or receives a product or service from a business or merchant, or intends to do so. 

  • A native official who exacted customs duties. 

  • A person, especially one engaging in some sort of interaction with others. 

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