by gum
idiom
informal + old-fashioned
—used to show surprise or determination
I looked it up, and by gum, she was right!
By gum, I really mean it this time!
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“By gum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/by%20gum. Accessed 18 Dec. 2024.
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