English phrase from drama scenes

What Does "you and i both know that's a lie" Mean?

Learn what "you and i both know that's a lie" means, when people say it, and how to use it naturally in English.

Intermediate
Rude
Firm
Accuse

You and I both know that's a lie.

It means the speaker is certain the other person is lying and wants to expose it.

From The Marriage Contract, Episode 58

When do people say this?

Scene Context

One person directly calls out another person's lie.

Usage Scenario

Use this in a heated argument when you want to challenge someone’s false statement. It can sound harsh and accusatory.

Better ways to say it

1
You know that's a lie.
2
That's a lie.
3
We both know that's a lie.

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How to Accuse Someone in English