GIVE ONE A PIECE OF ONE'S MIND

{v. phr.}, {informal} To scold angrily; say what you really think to (someone). * /Mr. Allen gave the other driver a piece of his mind./ * /The sergeant gave the soldier a piece of his mind for not cleaning his boots./ Syn.: TELL OFF. Compare: BAWL OUT, DRESS DOWN, GIVE IT TO, TONGUE LASHING.