coin purse

noun3

1. •
   A small bag or pouch designed for carrying money, particularly coins.

   • “I have gold,” Mananda repeated to the men as they drew closer, and he shook his coin purse, ringing the coins together. — 2007
2. •
   (slang) Testicles.

   • The classy trend of kneeing a man in his coin purse once seemed fresh. Like Paul Newman kicking that baddie in the nuts in Butch Cassidy. — 2013
3. •
   (informal) a type of theatrical performance undergarment used to hide male genitalia, by stuffing it into a pouch with a drawstring, to simulate being nude