6 letters · 11 points in Scrabble
noun something unspecified whose name is either forgotten or not known
noun a device or control that is very useful for a particular job
originCoined by American playwright George S. Kaufman in 1924 in his play Beggar on Horseback (1924). The preface to the 1924 play credits an earlier German work from 1911 where there is an actor Elisabeth Wigge.
Etymology from Wiktionary, CC BY-SA 3.0