English phrase from drama scenes

What Does "can't be serious" Mean?

Learn what "can't be serious" means, when people say it, and how to use it naturally in English.

Intermediate
Neutral
Firm
Express Doubt

Dad, you can't be serious about me marrying that guy.

It means the speaker does not believe the other person is serious about the marriage idea.

From Why I Did It, Episode 3

When do people say this?

Scene Context

The speaker reacts strongly to the idea of marrying a man they do not want to marry.

Usage Scenario

Use this to push back against a shocking or unwanted proposal. It sounds confrontational and is common in family or relationship arguments.

Better ways to say it

1
You can't be serious about me marrying that guy.
2
You're not serious about this marriage, are you?
3
You can't seriously expect me to marry him.

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What Does "can't be serious" Mean? - ReelFluent