graffiti vs wash out

graffiti

verb
  • To mark a surface with such images. 

noun
  • Drawings or words drawn on a surface in a public place, usually made without authorization. 

  • Informal inscriptions, figure drawings, etc., as opposed to official inscriptions. 

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 graffiti and wash out occurred in a corpus of books? (source: Google Ngram Viewer )