kick around vs rack brains

kick around

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

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

  • To be discussed informally; to be considered. 

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

rack brains

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