What Does "you don't know what you're talking about" Mean?
Learn what "you don't know what you're talking about" means, when people say it, and how to use it naturally in English.
You don't know what you're talking about.
This means the speaker thinks the other person is wrong and has no right to speak with confidence.
From The Escaping Mistress, Episode 6
When do people say this?
Scene Context
She snaps back at someone who is questioning her and dismisses their claim.
Usage Scenario
Use it in an argument when you want to strongly dismiss someone's opinion. It can sound rude or insulting, so avoid it at work or with people you need to stay polite with.
Better ways to say it
You don't know what you're talking about.
You have no idea what you're talking about.
You don't know what you're saying.
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