dispose of vs wash something down with

dispose of

verb
  • To transfer to another's control. 

  • To get rid of. 

  • To arrange in an orderly way. 

  • To deal with conclusively with a threat or a difficult situation. 

  • To have available, or at one's disposal. 

wash something down with

How often have the words dispose of and wash something down with occurred in a corpus of books? (source: Google Ngram Viewer )