son of a gun
US /sʌn əv ə ɡʌn/
UK /sʌn əv ə ɡʌn/

1.
caramba, puxa vida
an exclamation of surprise, admiration, or annoyance
:
•
Well, son of a gun, I never thought I'd see you here!
Bem, caramba, nunca pensei que te veria aqui!
•
He actually won the lottery, son of a gun!
Ele realmente ganhou na loteria, caramba!
2.
danadinho, danado
a mischievous or troublesome person, often used affectionately
:
•
That little son of a gun hid my keys again!
Aquele pequeno danadinho escondeu minhas chaves de novo!
•
He's a clever son of a gun, always finding a way to get what he wants.
Ele é um danado esperto, sempre encontra um jeito de conseguir o que quer.