pat vs shampoo

pat

verb
  • To (gently) tap the flat of one's hand on a person or thing. 

  • To stroke or fondle (an animal). 

  • To hit lightly and repeatedly with the flat of the hand to make smooth or flat 

  • To gently rain. 

adj
  • Exactly suitable, fitting, apt; timely, convenient, opportune, ready for the occasion; especially of things spoken. 

  • Trite, being superficially complete, lacking originality. 

adv
  • Opportunely, in a timely or suitable way. 

  • Perfectly. 

noun
  • A flattish lump of soft matter, especially butter or dung. 

  • The sound of a light slap or tap with a soft flat object, especially of a footstep 

  • A light tap or slap, especially with the hands 

shampoo

verb
  • 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. 

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

  • To wash one's own hair with shampoo. 

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 pat and shampoo occurred in a corpus of books? (source: Google Ngram Viewer )