coin purse vs footbag

coin purse

noun
  • A small bag or pouch designed for carrying money, particularly coins. 

  • Testicles. 

  • a type of theatrical performance undergarment used to hide male genitalia, by stuffing it into a pouch with a drawstring, to simulate being nude 

footbag

noun
  • A small beanbag or sandbag used as a ball in a number of sports and games. It is typically controlled by the feet, but in some sports every part of the body except the hands and arms may be used. 

  • Any of the sports that use the footbag. 

How often have the words coin purse and footbag occurred in a corpus of books? (source: Google Ngram Viewer )