Whangdoodle

The Whangdoodle is a fanciful creature in folklore and children's literature, most notably used by British authors Roald Dahl and Julie Andrews. Popularized by a sermon parody attributed to William P. Brannan as "Where the lion roareth and the whangdoodle mourneth for her first-born," published in The Harp of a Thousand Strings: Or, Laughter for a Lifetime (1858). Whangdoodle is also an earlier term for a "fanciful formation" or a "gadget . . . thing for which the correct name is not known."