Definition of "shake up" in English

Verb

1. To agitate by shaking.

   • If you shake up a can of cola and then open it, you get an explosion.

2. To restore to its original shape by shaking.

3. To upset or distress (a person).

   • Seeing the car accident really shook her up.

4. To reorganize, to make reforms in.

   • The new boss is going to shake things up, so be aware.