buggy whip

noun2

1. •
   (historical) A horsewhip with a long stiff shaft and a relatively short lash, used for driving a horse harnessed to a buggy or other small open carriage.
2. •
   (figurative) An obsolete product or technology.

   • Need to describe a hand-held mathematical calculator? Try “buggy whip.” A typewriter? A VCR? They’ve been called buggy whips, too. Even newspapers have received that label. (That one hurts.) — 2010