Nickname of a much sought after groupie who devoted her life to relieving the loneliness of country and western singers as they travelled on tour across the country. Used, by extension, as a slang term for C & W groupies in general. The eponymous "Butter
Queen" was said to use premium non-salted in order to maintain her lubricity. The Rolling Stones sing of being "Down in
Texas with the Butter
Queen" in "Rip This Joint".