What's the idea Meaning in English
expression
Definition
"What's the idea" is an informal expression, often used to ask someone what they are doing or why, especially when something seems strange or annoying. It can also show irritation or surprise.
Usage & Nuances
Mainly spoken and informal. Often used when questioning someone’s behavior that feels rude, surprising, or unwelcome: 'What's the idea of...?' is a common variation. Tone can sound annoyed or just confused, so context matters.
Example Sentences
What's the idea of leaving your shoes in the hall?
basic
What's the idea here? I don't understand this plan.
basic
What's the idea of waking me up so early?
basic
Hey, what's the idea—you can't just take my food!
natural
What's the idea of texting me at midnight?
natural
Okay, what's the idea—why is there paint all over the table?
natural