dump on vs upgrade

dump on

verb
  • To finish a romantic relationship with (someone). 

  • To complain to (someone) extensively; to (figuratively) transfer one's problems to (someone) by complaining to them. 

upgrade

adv
  • Up a slope or grade. 

noun
  • An upward grade or slope. 

  • An improvement 

  • An improved component or replacement item, usually applied to technology 

verb
  • To improve, usually applied to technology, generally by complete replacement of one or more components 

  • To replace with something better. 

  • To improve the equipment or furnishings of or services rendered to 

  • To replace a program with a later version of itself, a version having a higher version number or marketed under a more recent product name. 

  • To improve in condition or status. 

How often have the words dump on and upgrade occurred in a corpus of books? (source: Google Ngram Viewer )