Au reservoir!

'''Au reservoir! ''' is a malaprop used by Mrs Lucia Lucas, and later stolen by Miss Mapp, which echoes the correct French greeting "au revoir", meaning "goodbye".

Overview
Au reservoir is a delicious malaprop first used in Tilling by Miss Mapp and swiftly widely adopted.

Understood to have been first heard by Miss Mapp on a visit to a friend in that sweet and refined village called Riseholme in the Midlands. It was rather looked down on there as not being sufficiently intellectual. But within a week of Miss Mapp's return, Tilling rang with it, and she let it be known that she was the original humorist.

Much enjoyed by all, save for Quaint Irene Coles, who dismissed it as a silly old chestnut. Also, upon hearing "Au reservoir" Miss Susan Legg the visiting novelist asked "O what?" When Elizabeth Mapp responded, "Some of the dear folk here say 'Au reservoir' instead of 'Au revoir'," replied humourlessly, "Why do they do that?" See Any news?