High Dutch

alternative High-Dutch

1. USPennsylvania Dutch, particularly the Fancy Dutch.
2. South AfricaThe standard Dutch language, especially the literary Dutch language of the Netherlands, as contrasted with Cape Dutch or Afrikaans.First known use 19th c.
3. archaicHigh German.First known use 16th c.

   [H]is impatience increased, he swore in high Dutch, the noise of the wheels on his pavement saluted his ears, his vexation redoubled […].

   1751, [Tobias] Smollett, The Adventures of Peregrine Pickle […], volume (please specify |volume=I to IV), London: Harrison and Co., […], →OCLC

   1 more example

   The Emperor Charles V, made almoſt the ſame Obſervation, when he ſaid, That if he were to ſpeak to his Horſe, it ſhould be in High-Dutch.

   1726 October 28, [Jonathan Swift], “The Author Studious to Learn the Language, the Houyhnhnm His Master Assists in Teaching Him. […]”, in Travels into Several Remote Nations of the World. […] [Gulliver’s Travels], volume II, London: […] Benj[amin] Motte, […], →OCLC, part IV (A Voyage to the Houyhnhnms), page 188

alternative High-Dutch

1. archaicuncountableDouble Dutch; nonsense.First known use 17th c.