Or the person might have had a very frightening experience, like being chased by an angry dog. He might say: "I had my heart in my mouth."
Some people have lots of money because they were born into a very rich family.
There is an expression for this, too. You might say such a person "was born with a silver spoon in his mouth."
This rich person is the opposite of a person who lives "from hand to mouth."
This person is very poor and only has enough money for the most important things in life, like food.
Parents might sometimes withhold sweet food from a child as a form of punishment for saying bad things.
For example, if a child says things she should not say to her parents, she might be described as "a mouthy child."
The parents might even tell the child "to stop mouthing off."
But enough of all this talk. I have been "running my mouth" long enough.
