When someone is referred to as a “big mouth,” it means they often speak too much or reveal secrets that they shouldn’t. It’s another way of saying “someone who talks too much” or “someone who can’t keep a secret.”
Here are two examples in sentences:
Example 1:
John told his secret to Alex, but he soon regretted it because Alex is a “big mouth” and told everyone.
Example 2:
Sarah’s surprise party was ruined because her friend, a notorious “big mouth,” spilled the beans to her.
Now, let’s see two examples in a conversation:
Example 3:
Mike: Hey, Emma! I heard that you knew about the surprise party. Who told you?
Emma: Well, Mike, Lucy told me. You know she’s a big mouth.
Example 4:
Lisa: Hi, Ben! I heard that you’re planning a surprise trip for your wife. Who told her?
Ben: I told Pete, Lisa, and he couldn’t keep it to himself. He’s such a big mouth.
In summary, the term “big mouth” is used to describe someone who tends to speak too much or who can’t keep secrets. It’s often used to refer to individuals who unintentionally reveal confidential or sensitive information.