Shut your big mouth or I'll shut it for you.
Shut up, big mouth!
Dean muttered, immediately regretting his big mouth when he saw the look on her face.
It was my big mouth mentioning Byrne in front of Baratto that caused most of this problem but God knows what an open investigation would unfairly do to Cynthia Byrne.
I had my foot in the door and he darn near busted it, all the time saying his wife had a big mouth and didn't know what she was talking about.
You can blame your own big mouth.