[speak|talk] out of turn
1
to say something inappropriate at the wrong time
- At the first meeting I was afraid of speaking out of turn.
- I'm sorry if I spoke out of turn, but I thought you already knew.
- During the meeting, he spoke out of turn and derailed the discussion by bringing up unrelated topics.
- She realized she had spoken out of turn and apologized for making comments during the presentation.
- It's important to think before you speak to avoid speaking out of turn in a formal setting.