The term "Roly-Poly" can refer to a small, round insect known as the pill bug or roly-poly bug. These creatures are crustaceans that can roll into a ball when threatened, providing them with protection from predators. They are commonly found in gardens and damp areas, feeding on decaying plant material. Additionally, "Roly-Poly" is also a name for a popular children's song and dance. The song often involves playful movements and encourages kids to roll around, mimicking the actions of the insect. This fun activity promotes physical movement and coordination among young children.