It means that someone said something they shouldn't have said in the first place.
Keep your mouth shut
Be quite and keep that mouth of yours closed!
Be quite and keep that mouth of yours closed!
The cast of Keep Your Mouth Shut - 1944 includes: Lorne Greene as himself
KEEP YOUR MOUTH SHUT
Keep your mouth shut...
keep your mouth shut
litterally "shut your mouth" so basically shut up.
It means to keep your mouth shut and don't say something that might upset someone.
keep your mouth shut..... :D
Keep our mouth shut
It means shut your mouth or shut up or silence.