Meaning: Upset or shock
Example: The news of her death really SHOOK me UP.
Meaning: Make major changes to improve or save a company, organisation, etc
Example: The management are SHAKING things UP and getting rid of a lot of workers.
Meaning: Mix things in a container by shaking hard
Example: Pour the ingredients into a container and SHAKE them UP.
We have 4 phrasal verbs with 'SHAKE'