mule driver (noun)

1. In the science fiction novel, the mule driver was the protagonist's loyal companion on their intergalactic adventure.

2. According to the religious parable, the mule driver represented the humble and faithful servant of God.

3. During the Gold Rush, the mule drivers played a vital role in transporting supplies to the mining camps.

4. In the romantic film, the mule driver fell deeply in love with the beautiful señorita he met on his journey through the countryside.