I VUM, phr. (American).—A mild expletive or oath, ‘I vow’: cf. SWAN.

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  1841.  E. G. PAIGE (‘Dow, Jr.’), Short Patent Sermons, III. 265 [BARTLETT]. What though, instead of saying, ‘I swear to God,’ you say, ‘I declare to goodness?’ It is as much the same thing as a bobolink with a new coat of feathers. I VUM is just the same in spirit as I vow, and a ‘diabolical falsehood’ is synonymous with a devilish lie.

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  1865.  O. W. HOLMES, The Deacon’s Masterpiece.

            The Deacon swore (as Deacons do,
With an ‘I dew VUM,’ or an ‘I tell yeou.’)

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  1870.  JUDD, Margaret, I. xii. ‘I VUM,’ said he, ‘I’m sorry. What is the matter?’

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