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Related to shaken: shaken baby syndrome
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shake a/the habit
1. slang To overcome an addiction, typically to drugs. It took gum, patches, and counseling, but I've finally shaken the habit—no more cigarettes. Unfortunately, the nature of addiction means that shaking the habit isn't as simple as just wanting to stop.
2. To stop any kind of habitual behavior. I had a hard time shaking the habit of snoozing my alarm every morning.
shake the foundations of (something)
To impact something in a way that affects its very essence, especially concerning its values or beliefs. The death of her son shook the foundations of her beliefs. The election of the outsider candidate shook the foundations of the party, and led to a lot of soul-searching among its members.
shake the lead out
To do something at a faster pace. (Lead is a very heavy metal.) Come on, these papers won't copy themselves—shake the lead out, fellas!
Greatly startled, shocked, or upset. I was very shaken up after the car accident. I couldn't even speak properly to the police for about an hour. I remained shaken up for most of the day after hearing about my grandfather's death.