An assistant at a golf course is called a caddy.
When people play golf, they often hire someone to carry their clubs and give them advice on how to hit the ball. This person is usually young and strong, but you don't have to be a teenager or athlete to be a good caddy - it's about being helpful and knowledgeable about the game. Sometimes, experienced players even bring their own personal caddies along with them to tournaments.
One hired to assist another in playing the game of golf.
Example: "Caddy, pass me my five iron."
To serve as a caddy, carrying golf clubs etc.
Example: I was honored to caddy for Tiger Woods at a charity golf game.
