shake up

verb — 4 senses

shake up

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

Idiomatic, Informal To upset or distress (a person).

  • Seeing the car accident really shook her up.
4

Informal To reorganize, to make reforms in.

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

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.