noun the vagina. is an adjective with suggestive and sexual uses; Lucy is a convenient rhyming name. It may also be worth noting that Juicy Lucy was a moderately successful UK blues band in the late 1960s and early 70s. A controversial, and hence memorable illustration on their 1969 eponymous debut album depicted a plump, naked lady disported in 'juicy fruit' – grapes, etc. Also a slang term for 'sexual intercourse' UK, 2001