Definitions for "Rub of the green"
If a ball is accidentally deflected or stopped by an outside agency (caddie, forecaddie, referee, etc.), it is called "rub of the green" and the ball is played where it comes to rest. No penalty is assessed..
When a ball in motion is stopped or deflected by an outside agency; there is no penalty and the ball is played as it lies.
An unanticipated bounce of a golf ball once it has hit the ground.