не шутят

don't joke around

→ не
phrase Rare #35,140
don't joke around Can mean “they don't joke” when referring to specific people, or “you don't joke around with...” in a general warning. With с plus the instrumental case, it means “don't joke with/about something.”
RU: С деньгами не шутят.
EN: You don't joke around with money.

Они в самом деле не шутят?

Are they really not joking?

Такими вещами не шутят.

You don't joke about things like that.

— Сладкая жизнь (1960)

Со мной не шутят.

I'm not to be trifled with.

— Битва за битвой (2025)

Они не шутят.

They aren’t joking.

С такими вещами не шутят.

You don't joke around with things like that.

— Комплекс Баадер-Майнхоф (2008)

С любовью не шутят.

Love is no laughing matter.