shampoo vs wash out

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. 

wash out

verb
  • To wash the inside of something. 

  • To lose traction while going around a turn, especially in cycling, motorsports and skiing/snowboarding. 

  • To wear away by the flow of water; to erode. 

  • To remove something by washing. 

  • To be removed by washing. 

  • To cancel due to bad weather. 

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