a piece of mind

a piece of (one's) mind

One's true thoughts or feelings about something, especially angry or frustrated criticism. Boy, the boss really gave me a piece of his mind during my performance review. This has to have been the worst service I've ever had a restaurant. I'm going to let the waiter have a piece of my mind!
See also: mind, of, piece
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

a piece of (one's) mind

Frank and severe criticism; censure.
See also: mind, of, piece
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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