speak out of turn

speak out of turn

To say something erroneous, foolish, or impudent at an inappropriate time, or to speak when one does not have the authority to do so. I hope I'm not speaking out of turn, but I think we'd see a higher profit margin if we took better care of our employees' benefits. If you speak out of turn in my class, you can expect detention!
See also: of, out, speak, turn
Farlex Dictionary of Idioms.

speak out of turn

Fig. to say something unwise or imprudent; to say something at the wrong time. Excuse me if I'm speaking out of turn, but what you are proposing is quite wrong. Bob was quite honest, even if he was speaking out of turn.
See also: of, out, speak, turn
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

speak (or talk) out of turn

speak in a tactless or foolish way.
See also: of, out, speak, turn
Farlex Partner Idioms Dictionary
See also:
  • (I) hope not
  • hope not
  • not for a second
  • not for a minute
  • not for a moment
  • not for a instant
  • not for a/one minute/moment/second/instant
  • aint
  • ain't
  • be like ships in the night