What Does “Rat on sb” Mean?
“Rat on sb” means to betray or inform on someone, often by telling authorities or others about their wrongdoing.
Introduction
The phrase “Rat on sb” is a common English phrasal verb used to describe the act of betraying or telling on someone, usually to get them into trouble. This expression often has a negative connotation because it implies breaking trust or loyalty. Understanding the “Rat on sb meaning” helps learners recognize situations where someone reveals secrets or reports bad behavior to others. It’s often used in informal contexts, especially among friends, colleagues, or in stories involving secrets and trust issues.
Quick Info Box
- Phrasal verb: Rat on somebody
- Type: Transitive
- Level: B2
- Short meaning: To betray or inform on someone
Structure (Grammar Rules)
“Rat on sb” is a transitive and inseparable phrasal verb. You cannot separate “rat” and “on” by inserting an object between them.
Correct structure: rat on somebody
Incorrect structure: rat somebody on
How to Use Rat on sb?
Use “Rat on sb” when you want to say someone has betrayed or informed on another person, usually to an authority figure or someone in power. It often implies negative feelings like disappointment or anger toward the person who “ratted.”
It is commonly used in spoken English, informal writing, and storytelling. You can use it in past, present, or future tenses:
- He ratted on his classmates.
- Don’t rat on me!
- She will rat on you if you’re not careful.
Examples
Imagine a group of friends where one tells the teacher about cheating. Here, “rat on sb” is perfect to describe that action.
- John ratted on his friends after they broke the school rules.
- She didn’t want to rat on her brother, even though he was in trouble.
- Why did you rat on me to the boss?
- They were afraid someone would rat on them for skipping class.
- He promised not to rat on anyone.
These sentences show “Rat on sb in a sentence” used naturally.
Common Mistakes
People sometimes confuse the word order or use it in the wrong context. Here are some common errors:
- Incorrect: I ratted my friend on.
- Correct: I ratted on my friend.
- Incorrect: Don’t rat your teammates on.
- Correct: Don’t rat on your teammates.
Remember, “rat on” is inseparable, so keep the object immediately after “on.”
Differences / Synonyms
“Rat on sb” is similar to “snitch on sb,” “tell on sb,” and “inform on sb.” All mean to report someone’s wrongdoing, but they have subtle differences:
- Snitch on sb: Very informal, often negative, used more in American English.
- Tell on sb: Slightly softer, often used by children.
- Inform on sb: More formal, used in official contexts.
“Rat on sb” carries a strong sense of betrayal and is common in casual speech.
Common Collocations
People often “rat on” specific objects or people. Here are common collocations:
- Rat on a friend – betray a friend
- Rat on a teammate – inform on a colleague
- Rat on a classmate – tell a teacher about a peer
- Rat on someone to the police – report to authorities
- Rat on a partner – betray a close associate
Related Phrasal Verbs
Here are related phrasal verbs of rat on sb:
Real-life Dialogue
Here’s a short conversation using “rat on sb”:
Anna: Did you hear that Mike ratted on us to the teacher?
Ben: Yeah, I can’t believe he did that. I thought he was our friend.
Anna: Now we’re all in trouble because he ratted on us.
Practice
Try to complete the sentence with the correct form:
- She promised not to ______ on her classmates during the test.
- He always ______ on his friends when things go wrong.
- Don’t ______ on me, I didn’t do anything.
Answers:
- rat
- rats
- rat
FAQ
- What does “rat on sb” mean? It means to betray or inform on someone, usually to get them in trouble.
- Is “rat on sb” formal? No, it is informal and often used in casual speech.
- Can I say “rat somebody on”? No, the correct form is “rat on somebody.”
- What is a synonym for “rat on sb”? Synonyms include “snitch on sb” and “tell on sb.”
- Is “rat on sb” always negative? Yes, it usually implies betrayal or breaking trust.
