Meaning of the word "by gum!" in English

What does "by gum!" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

by gum!

US /baɪ ɡʌm/
UK /baɪ ɡʌm/
"by gum!" picture

Exclamation

1.

an exclamation of surprise or emphasis

Example:
By gum, that's a big fish!
Well, by gum, I never thought I'd see the day!
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