To humbug. As noun, a humbug.

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1843.  Now this, reader, was all gum; Sam could not read a word.—B. R. Hall (‘Robert Carlton’), ‘The New Purchase,’ i. 255.

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1846.  “Look hyur, stranger,” said he, “do I look as if I could be gummed that easy?”—E. W. Farnham, ‘Life in Prairie Land,’ 28.

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1848.  

        “You can’t gum me, I tell ye now, an’ so you need n’t try,
I ’xpect my eye-teeth every mail, so jest shet up,” sez I.
Lowell, ‘Biglow Papers,’ No. 9.    

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1849.  He was speaking of the “moon hoax,” which “gummed” so many learned philosophers some years ago.—Yale Lit. Mag., xiv. 189 (Feb.).

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1855.  Jonathan exclaimed, “You can’t gum it over me.”—Weekly Oregonian, June 16.

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