Ever hear someone say “rat me out” and wonder what’s up with that? “Rat me out” is slang for telling on someone or spilling their secret, usually to someone in charge or just someone who really shouldn’t know. People use it when someone betrays trust by sharing private or hidden info.

You’ll catch this phrase in movies, TV shows, or even just chatting with friends when someone warns another not to snitch. Knowing what it means helps you pick up on the vibe in lots of conversations and shows how trust (or the lack of it) shapes relationships.
If you’re curious about why people say it and how it shows up in different situations, let’s dig in.
What Does Rat Me Out Mean in Slang?

When someone says “rat me out,” they mean that someone else is telling on them or exposing their secrets. Usually, it happens when a person reveals info you wanted to keep hidden, often to someone like a teacher or the police.
It feels like a betrayal. People usually get angry or upset about it.
Definition and Core Meaning
To “rat someone out” means you tell on them, especially by sharing secrets or something wrong they did. If someone rats you out, they’re exposing something you wanted to keep quiet.
It’s just a slangy way of saying someone snitched or informed on you.
The word “rat” here comes from the idea that rats are sneaky and not very trustworthy. Calling someone a rat basically says they broke your trust.
So, when you hear “rat me out,” it’s usually about believing someone betrayed you by telling others about your business.
Common Contexts and Usage
You’ll hear “rat me out” at school, between friends, or in crime stories. Let’s say a classmate tells a teacher you cheated—yeah, you’d probably say, “You’re trying to rat me out.”
In crime settings, people use “rat” for someone who tells police about other criminals. Cops and criminals both call these people rats because they break the code of silence.
The phrase sounds pretty informal and can come off as harsh. Most of the time, it shows someone feels distrust or anger toward whoever spilled the beans.
Examples in Pop Culture
Crime movies and TV shows love using “rat” as an insult for someone who snitches. Characters who “rat out” others usually end up facing some serious consequences.
Lines like, “Don’t rat me out to the cops!” really show the fear of being exposed.
In regular conversations, people might use it in a lighter way, but it still stings when someone breaks your trust.
If you want to check out more, you can look at definitions of rat me out or read about the history of rat out.
Related Slang Terms and Historical Background

To really get “rat me out,” you’ve got to know a bit about where it comes from and how it connects to other slang. You’ll see it pop up in crime culture, old stories, and even real life.
Origins of the Phrase and Its Evolution
“Rat me out” means to tell on someone or snitch. The idea comes from rats being sneaky animals that run away or betray their group.
People started using “rat” as an insult way back in the 1600s. They’d call someone a rat if they abandoned others in danger, like rats fleeing a sinking ship.
By the 1800s and early 1900s, “rat” became common in criminal slang. It described someone who told the police or bosses about others’ crimes. That sense of betrayal stuck, so “rat me out” became a strong way to accuse someone of telling secrets—especially in crime or prison settings.
You can read more about the history in Where Does Rat Someone Out Come From? Origins, Meaning & Usage.
Connections to Other Slang: Snitch, Broad, Buzz
“Rat” isn’t the only word people use for someone who tells on others. Words like snitch, broad, and buzz show up in similar ways.
- Snitch is super common for someone who tells the authorities about others. It’s just as negative as “rat.”
- Broad usually means a woman, but in old crime slang, it sometimes referred to an informer if she helped the cops.
- Buzz can mean giving info or warnings, like spreading rumors or signaling to police.
Other crime slang includes:
- Pickpocket for a thief who steals wallets.
- Chiv for a knife, showing how crime slang covers all sorts of things.
Knowing these words helps you see how “rat me out” fits into a bigger world of slang tied to trust and betrayal.
Slang in Hardboiled Fiction and Crime Culture
Hardboiled fiction—those gritty crime stories from the early 1900s—brought a bunch of slang into the spotlight. Writers tossed around words like “rat,” “snitch,” and “broad” to paint the world of cops, crooks, and informers.
You’ll notice that in these tales, a rat means a traitor. A dame is just a woman, but sometimes she’s tough, clever, or maybe a little bit dangerous.
Crime culture really pulled these terms into daily conversations in certain circles. Both police and criminals would throw out words like rat or stoolie when they wanted to warn others about someone who might talk.
Go watch some old gangster flicks or detective shows and you’ll spot this language everywhere. The slang sets the mood, and honestly, it makes you wonder who you can trust in that world.
It’s all a reflection of the anxiety about betrayal and loyalty in tough environments.