by gum!
US /baɪ ɡʌm/
UK /baɪ ɡʌm/

1.
por Deus, caramba
an exclamation of surprise or emphasis
:
•
By gum, that's a big fish!
Por Deus, que peixe grande!
•
Well, by gum, I never thought I'd see the day!
Bem, por Deus, nunca pensei que veria o dia!