man Friday (noun)

1. In the science fiction novel, the protagonist's advanced humanoid robot serves as his faithful Man Friday.

2. The haunted house was said to be guarded by a terrifying Man Friday who would scare away anyone who attempted to enter.

3. According to Greek mythology, Heracles had a loyal Man Friday named Philoctetes who helped him in his twelve labors.

4. In the film, the main character's Man Friday plays a crucial role in saving the day and assisting the hero throughout their journey.