The term 'Certain Jamaican' can be summarized by the crossword solution 'Rasta, ' which is a term used to describe a member of the Rastafari movement. The Rastafari movement is a religious and social movement that originated in Jamaica in the 1930s, and is based on the teachings of Marcus Garvey. Rastafari followers believe in the divinity of Haile Selassie I, the former Emperor of Ethiopia, and practice a lifestyle that includes the use of marijuana and dreadlocks.