Hold your tongue!

hold (one's) tongue

To stay quiet despite wanting to say something. If you want to say something rude to my girlfriend, please hold your tongue, all right?
See also: hold, tongue
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

Hold your tongue!

Inf. You have said enough!; You have said enough rude things. (See also hold one's tongue.) Bill: You're seeing Tom a lot, aren't you? You must be in love. Jane: Hold your tongue, Bill Franklin! After listening to the tirade against him for nearly four minutes, Tom cried out, "Hold your tongue!"
See also: hold
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
"Hold your tongue!" said the Queen, turning purple.