Ever heard of a Käseigel?
Well, you’ve probably seen or even eaten cheese and grapes from cocktail sticks. 50s, 60s and 70s there was a trend to stick these sticks into a large fruit, eg. a melon, so creating the form of a hedgehog. Hence the name “Käseigel”.
The term has now been listed as one of the words threatened to be removed from German dictionaries for lack of use.
A list of such words is online at http://www.bedrohte-woerter.de/