chew over vs kick around

chew over

verb
  • To think deeply about; to ponder or mull over. 

kick around

verb
  • To be discussed informally; to be considered. 

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

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

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

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