towel off vs wash out

towel off

verb
  • To dry (oneself or another person or thing) completely, using a towel. 

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