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 talking about.

It means the speaker thinks the other person is wrong or uninformed.

From Conflicted Hearts, Episode 10

When do people say this?

Scene Context

The speaker is rejecting another person's opinion in the middle of an argument.

Usage Scenario

Use this in a fight only if you want to sound harsh or disrespectful. It is common in arguments but can be insulting.

Better ways to say it

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

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English Comeback Phrases

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