by gum
01
まあ, なんてことだ
used when one is surprised or when one wants to emphasize something
Dialect
British
例
By gum, I really mean it this time!
神にかけて, 今回は本当にそう思います!
I looked it up, and by gum, she was right!
調べてみたら、まさか、彼女は正しかった!
まあ, なんてことだ