rub up vs shampoo

rub up

verb
  • To polish or scrub; to cover (something with a substance) by rubbing. 

  • To rub (a body part): to massage, give a massage to. 

  • To assault (someone). 

  • To create (something) by rubbing. 

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. 

noun
  • 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. 

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

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