shake up

phrasal verb·1 sense·particle up

Usefulness

Meanings

1

Cause major changes to a system or organisation

Why “up”? Something normal is disturbed. Feelings, systems, machines, or behavior become noisy, troubled, or out of control.

The new boss shook up the firm.
The new boss caused major changes to the firm.
A sudden rule change shook up the whole school.
A sudden rule change caused major changes throughout the school.

Don't confuse with

shake upshake down

Shake up means cause major changes to a system or organisation. Shake down means extort money from someone by threats.

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The new boss shook up the firm. What does it mean?

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