bagwash vs shampoo

bagwash

noun
  • A type of laundry in which the washing was returned to the customer in a bag, undried and unpressed. 

shampoo

noun
  • A commercial liquid soap product for washing hair or other fibres/fibers, such as carpets. 

  • Champagne. 

  • A traditional Indian and Persian body massage given after pouring warm water over the body and rubbing it with extracts from herbs. 

  • An instance of washing the hair or other fibres with shampoo. 

verb
  • To wash (i.e. the hair, carpet, etc.) with shampoo. 

  • To wash one's own hair with shampoo. 

  • To press or knead the whole surface of the body of (a person), and at the same time to stretch the limbs and joints, in connection with the hot bath. 

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