good grief!
US /ɡʊd ɡriːf/
UK /ɡʊd ɡriːf/

1.
bon sang, mince alors
an exclamation of surprise, exasperation, or alarm
:
•
Good grief, look at the mess you've made!
Bon sang, regarde le désordre que tu as fait !
•
Good grief, is it that late already?
Bon sang, il est déjà si tard ?