Pipe up, speak out, speak out of turn, talk out of your ass
Pipe up:
to speak up.
Speak out: to express one's opinion openly and without fear or hesitation; "John spoke up at the meeting".
Speak out of turn:
to say something that you should not have said
Talking out of your ass:
Uttering or talking nonsense. Most commonly done by politicians, shills, and corporate whores
