tu m'étonnes

you bet

→ tu
phrase Rare #44,888
you bet An informal expression of emphatic agreement, often with an ironic tone. Literally, it means “you surprise me.”
FR: Tu m'étonnes, ce film est génial !
EN: You bet, this movie is great!

Manon, tu m'étonnes.

Manon, you surprise me.

— Jean de Florette (1986)

Eh bien, tu m'étonnes.

Well, you surprise me.

— Ne le dis à personne (2006)

Tu m'étonnes.

You surprise me.

— Do the Right Thing (1989)

Tu m'étonnes !

No wonder!

— Elephant (2003)

Inquiète, tu m'étonnes !

Worried? You don't say!

— Tout sur ma mère (1999)