don't joke around
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.