“Rat” is a word with a few common meanings. It can mean a small rodent, which is an animal with a long tail and sharp teeth. It can also be used informally to describe a person who is disloyal or who tells on others.
In everyday English, people usually use “rat” to talk about the animal first. But in conversation, movies, or news stories, it can also be used as an insult or to describe someone who betrays trust. The meaning depends on the situation.
Meaning & Usage
As an animal, a rat is a small creature often found in cities, homes, or fields. As slang, “rat” can mean someone who “rats out” another person, which means they report them or betray them.
Examples
“A rat ran across the floor.”
“He was called a rat for telling the teacher.”
Context / Common Use
People usually say “rat” in a negative way when they mean a disloyal person. In normal conversation, though, it most often means the animal.
What does “rat” mean as slang?
As slang, “rat” usually means a person who betrays others or tells secrets to someone in authority.
Is a rat always an insult?
No. If someone is talking about the animal, it is not an insult. It becomes negative only when used about a person.
What does “rat out” mean?
“Rat out” means to report someone or reveal their secret, often in a way that feels like betrayal.
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