you tell me—
- I don’t know; I have no idea: “How can we possibly get through this week with just this amount of money?” “You tell me.”
Note: The expression does not correlate in meaning with the phrase you tell ’em—used to agree with or encourage smb. in what he is saying:
- “Keeping the bridge closed might be inconvenient….” “You tell ’em,” said Johnnie.
you’re telling me—I know it very well; it is so clear that it need not be said:
- “It’s a bad corner. You can’t turn.” “You’re telling me.”