A run producer is a baseball player who is able to consistently hit the ball and get on base, allowing them to score runs for their team. The term 'run producer' can also be used to describe a player who is able to get other players on base, such as by hitting a sacrifice fly or drawing a walk. The term 'SNAG' is a four-letter word that is often used to refer to a run producer, as it implies that the player is able to 'SNAG' runs for their team.