don't know what you're talking about

You don't know what you're talking about!

Tu ne sais pas de quoi tu parles !

— Castle in the Sky (1986)

Why blush if I don't know what you're talking about.

Pourquoi rougir si je ne sais pas de quoi tu parles ?

— Little Vera (1988)

You don't know what you're talking about.

Tu ne sais pas de quoi tu parles.

— Goalie (2019)

I don't know what you're talking about.

Je ne vois pas de quoi tu parles.

— Catch Me If You Can (2002)

I don't know what you're talking about, man.

Je ne vois pas de quoi tu parles, mec.

— Anaconda (2025)

I'm sure I don't know what you're talking about.

Je suis certain de ne pas savoir de quoi vous parlez.

— TÁR (2022)

I really don't know what you're talking about.

Je ne sais vraiment pas de quoi tu parles.

I love you, but you don't know what you're talking about.

Je t’aime, mais tu ne sais pas de quoi tu parles.

— Moonrise Kingdom (2012)

Mister, you don't know what you're talking about.

Monsieur, vous ne savez pas de quoi vous parlez.

— A Taxi Driver (2017)