SHAKE DOWN

{v. phr.} 1. To cause to fall by shaking. * /He shook some pears down from the free./ 2. {informal} To test, practice, get running smoothly (a ship or ship's crew). * /The captain shook down his new ship on a voyage to the Mediterranean Sea./ 3. {slang} To get money from by threats. * /The gangsters shook the store owner down every month./