The term 'worshiper in dreadlocks, informally' can be summarized as 'Rasta'. Rasta is a term used to describe a person who follows the Rastafari movement, a religious and cultural movement that originated in Jamaica in the 1930s. The term is derived from the name of the movement's spiritual leader, Haile Selassie I, who was crowned Emperor of Ethiopia in 1930. Rastafarians typically wear their hair in dreadlocks, which are long, matted locks of hair, and they often practice vegetarianism and use marijuana as part of their religious rituals.