v. phr. 1. To begin play in a ball game. When the umpire calls "Play ball," the game begins. 2. informal To join in an effort with others; cooperate. To get along during Prohibition, many men felt that they had to play ball with gangsters. A is often good business to play ball with a political machine.
PLAY BALL
Meaning of PLAY BALL in English
American idioms English vocabulary. Английский словарь американских идиом. 2012