beans about something (not to know) [exp]

Meaning:

• not to know even a little about an issue.

Examples:

1. I can’t work with Apple Macintosh. I don’t know beans about its Operating System.
2. “I don’t know beans about technology, but I can figure out how to send an email!
3. She doesn’t know beans about finance, so I doubt she’ll be able to help with the budget.
4. I’m not the best cook. Honestly, I don’t know beans about preparing a five-course meal.
5. Don’t ask me about politics; I don’t know beans about what’s going on in the government.
6. My dad tried to explain how a car engine works, but I don’t know beans about that stuff!
7. You think I know beans about soccer? I’m just here for the snacks!
8. I’m not even sure where to start with this software. I don’t know beans about how it works.
9. I tried explaining football to her, but she doesn’t know beans about the game!
10. I’m really struggling with math. I don’t know beans about how to solve these equations. Can you help?