Definition of "John" :

noun: a room or building equipped with one or more toilets

noun: the last of the four Gospels in the New Testament

noun: a prostitute's customer

noun: (New Testament) disciple of Jesus; traditionally said to be the author of the 4th Gospel and three epistles and the book of Revelation

noun: youngest son of Henry II; King of England from 1199 to 1216; succeeded to the throne on the death of his brother Richard I; lost his French possessions; in 1215 John was compelled by the barons to sign the Magna Carta (1167-1216)