Hitchhiker's Request is a term used to describe the request of a person who is hitchhiking for a RIDE. It is usually done by sticking out one's thumb and asking for a RIDE from passing vehicles. The term 'RIDE' is the four letter solution to this crossword puzzle, which is an acronym for 'Requesting Immediate Delivery Everywhere'. This term is often used to describe the act of hitchhiking, as it implies that the person is looking for a RIDE anywhere and everywhere.