what's the big idea?INFORMAL
This page is about the conversational phrase what's the big idea?
You can say this if someone's doing something, or has done something, that you think is wrong or bad.
- When I caught my kids playing computer games, I said, "Hey! What's the big idea? Why aren't you doing your homework?"
- "What's the big idea, telling everyone about it? It was supposed to be a secret!"
Their teacher said, "What's the big idea?" when he
Contributor: Matt Errey