“RBF” usually stands for “resting bitch face.” It is a slang term used to describe a facial expression that looks serious, annoyed, or unfriendly, even when the person is not feeling that way.
People use “RBF” in everyday conversation, online, and on social media to talk about someone’s natural face expression. It is often said jokingly, but it can also be used in a rude way, so the meaning depends on the situation.
Meaning & Usage
“RBF” is not a formal term. It is casual slang, and people usually use it when they think someone looks unapproachable or upset without meaning to.
Examples
For example, someone might say, “I have RBF, but I’m actually nice.” Another person might say, “Don’t mind her RBF — she’s just concentrating.”
Context / Common Use
You will mostly see “RBF” in texts, memes, comments, and social media posts. It is common in informal English, especially when people are talking about facial expressions or first impressions.
Is “RBF” a polite term?
Not always. It can be funny between friends, but it may sound rude or insulting if used carelessly.
Can “RBF” mean something else?
Yes, in some contexts it can have other meanings, but “resting bitch face” is the most common one in everyday English.
Is “RBF” a formal expression?
No. It is slang, so it is best used in casual conversation, not in formal writing.
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