shake out(redirected from shake something down)
shake something out
1. Lit. to clean something of dirt or crumbs by shaking. Please shake the tablecloth out. Can you shake out your coat? It's really dusty.
2. and shake something down Fig. to test something to find out how it works or what the problems are. I need to spend some time driving my new car to shake it out. We need to shake down this car before I buy it.