[upset|overturn] the apple cart
1
to cause problems, often by ruining or interrupting something that was planned
The idiom "upset the apple cart" originates from the image of a person accidentally or intentionally tipping over a cart filled with apples, creating a mess and disrupting order. It is used to describe an action that causes chaos, disruption, or ruins existing plans, often due to carelessness or a sudden change in circumstances.
- An industry-backed initiative petition with a large marketing budget overturned the apple cart.
- I don't like upsetting the apple cart, but with all the snow outside I think we should change our plans and not go to the concert this evening.
- Sarah's decision to quit her job and travel the world upset the apple cart for her family, who were relying on her income.
- The sudden budget cuts in the middle of the project overturned the apple cart, leading to delays and confusion.
- By revealing the company's financial troubles to the public, the whistleblower really upset the apple cart.