The term 'tractor handle' is a reference to the John Deere brand of tractors. The company was founded in 1837 and is one of the oldest and most recognizable brands in the agricultural industry. The company's iconic green and yellow tractors are known for their durability and reliability, making them a popular choice for farmers and other agricultural workers. The term 'tractor handle' is used to refer to the steering wheel of a John Deere tractor, which is designed to be easy to grip and maneuver.