- a raving lunatic
- The cashier was Martin’s black-beast, and his temper was a trifle short where the talker of platitudes was concerned.
- One speaks eloquently
- He is all talk.
- Her face is beautiful;her manner is charming;her mouth is full of honeyed words.
- He put ashes on his head,apologized profusely,but then went glibly about his business.
- The head waiter bustled up, full of apologies
- He was a philosopher, full of little sayings and homilies about the ways of the world
- Don't pay attention to Patrick; he's full of blarney
- Those people can huff and puff but they are powerless the way things are.
- Live from hand to mouth
- To live from hand to mouth
- A close mouth catches no flies
- You've got such a crude mouth!
- He has ten mouths to feed.