kick around vs knock around

kick around

verb
  • To abuse or mistreat; to bully; to be rough with. 

  • To wander loose; to float around; to hang around. 

  • To be discussed informally; to be considered. 

noun
  • An informal game of football, rugby or similar sports. 

knock around

verb
  • Synonym of knock about 

How often have the words kick around and knock around occurred in a corpus of books? (source: Google Ngram Viewer )