 When three or more meanings have been constructed, this is known as a "triple entendre", etc.A person who is unfamiliar with the hidden or alternative meaning of a sentence may fail to detect its innuendos, aside from observing that others find it humorous for no apparent reason.Perhaps because it is not offensive to those who do not recognise it, innuendo is often used in sitcoms and other comedy where the audience may enjoy the humour while being oblivious to its secondary meaning.