you're telling me

you're telling me idiom
I'm well aware of that, as in She's a terrific dancer.—You're telling me! I taught her how, or You're telling me, the prices are sky-high here. [Early 1900s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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