shake up
verb
- to tremble, jar by or as if by shaking, disrupt or disturb
Wiktionary
verb
- To agitate by shaking.
“If you shake up a can of cola and then open it, you get an explosion.”
- To restore to its original shape by shaking.
- To upset or distress (a person).
“Seeing the car accident really shook her up.”
- To reorganize, to make reforms in.
“The new boss is going to shake things up, so be aware.”