Pick someone's brain
Meaning: to ask someone’s advice about a subject in which the person is an expert.
When you ask someone, “Hey can I pick your brain on something?”
You are basically saying, “Can you help me, since you are good at this?”
Imagine, you are working on a project that requires knowledge about stock market. But you don’t know much about the stock market.
You have a cousin who works in the stock market. You think it will be a good idea to talk to him and get some of his ideas.
You can say, “Hey John, can I pick your brain on a project that I am working on?”
More examples:
- Can I pick your brain on a math problem?
- Why don’t you pick John’s brain sometime? He is a professional.
- If you help me with the tire change first, I will let you pick my brain on your project.
(IDIOM)
