loudmouth

A loudmouth is not just someone who speaks loudly. It is someone who talks too much and cannot keep things private. Think of Old Man Hemlock in town, always sharing everyone else's business at the diner. He does not mean to cause trouble; he just keeps talking. A loudmouth often blurts out things they should not say, shares secrets, or brags too much. It is rarely a compliment. You might use it for someone who boasts all the time or spreads gossip. Sometimes friends say it jokingly, but it is usually negative.

The term "loudmouth" describes a person who talks too much, often about things that are private or sensitive. It is not only about speaking loudly. More often, it suggests a lack of control and an inability to keep information to themselves. A loudmouth might reveal secrets, brag too much about their achievements, or speak without thinking about the effect on other people.

The word often implies carelessness with words: someone who does not think before they speak. It is rarely used as a term of affection. While it can describe a person who is simply very talkative, it usually suggests that their talking is annoying, careless, or embarrassing for others. Think of the character in a movie who reveals the hero's secret plan at exactly the wrong moment. That person is a loudmouth.

The word is still generally negative today, though friends may sometimes use it in a playful way. You might say, "Don't tell him anything important; he's a bit of a loudmouth," or, "She was furious when she found out her friend was such a loudmouth."

So, if someone keeps oversharing, bragging, or telling things that should stay private, you might describe them as a loudmouth: a person whose mouth gets them into trouble.