that's for me to know and you to find out

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that's for me to know and you to find out

cliché I know the answer to your question, but I'm not going to tell you. Instead, you will discover it for yourself in due time. A: "Come on, what did Mom and Dad get me for my birthday?" B: "That's for me to know and you to find out! You'll just have to wait." A: "Why on earth are we taking this approach to the problem?" B: "Right now, that's for me to know and you to find out. You have to trust me."
See also: and, find, for, know, out, to
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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