A Jumbee is a type of mythological spirit or demon in the folklore of some Caribbean countries. Jumbee is the generic name given to all malevolent entities. There are numerous kinds of jumbees, reflecting the Caribbean complex history makeup, drawing on African, Amerindian, East Indian, Dutch, English, and even Chinese mythology. Different cultures have different concepts of jumbee's, but the general idea is that people who have been evil are destined to become instruments of evil (jumbee) in death. Unlike the ghost folklore which represents a wispy fog-like creature, the jumbee casts a dark shadowy figure.
It gives you an interesting feeling when you walk out on to a dark street and meet one of these Jumbee's.