"Mulejennies" refers to female mules, which are the offspring of male donkeys, also known as jacks, and female horses, known as mares. Some synonyms for "mulejennies" include "mollys", "mules", and "hinneys". "Mollys" are female mules that are a result of breeding a jack with a mare, while "mules" are the general term for the hybrid offspring of jacks and mares. "Hinneys" are the less common offspring of a male horse, also known as a stallion, and a female donkey, referred to as a jenny. Regardless of their name, mulejennies are known for their strength and endurance.