What do you think you are doing? What foolishness do you have in mind? Also 'what's the big idea?' Used to express disapproval. Also 'the very idea!'
Examples:
- What's the idea of taking the car without permission?
Origin: c. 1900
Synonyms: what
What do you think you are doing? What foolishness do you have in mind? Also 'what's the big idea?' Used to express disapproval. Also 'the very idea!'
Examples:
Origin: c. 1900
Synonyms: what