English phrase from drama scenes

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.

Beginner
Rude
Firm
Confront

You don't know what you're

This means the speaker believes the other person is wrong or uninformed.

From Destined To Be, Episode 3

When do people say this?

Scene Context

A speaker dismisses what the other person is saying during an argument.

Usage Scenario

Use this in a heated argument, but it sounds rude and insulting. It is not appropriate in polite conversation or at work.

Better ways to say it

1
You don't know what you're talking about.
2
You don't know what you're saying.
3
You have no idea what you're talking about.

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English Comeback Phrases

What Does "you don't know what you're talking about" Mean? - ReelFluent