slang. ? Obs. (Also as two words.) A gold coin; a guinea or sovereign.

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1662.  J. Wilson, Cheats, I. i. Do they cry Chink in thy Pocket?—How many yellow Boyes (Rogue) How many yellow Boyes?

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1663.  Dryden, Wild Gallant, III. i. If one could see the yellow boyes peeping underneath the brims now.

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1700.  T. Brown, trans. Fresny’s Amusem., 129. I have … in my Pocket brave Yellow Boys, to pay for a Coat of Arms.

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1712.  Arbuthnot, John Bull, I. vi. Yellow-boys to fee counsel, hire witnesses, and bribe juries.

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1838.  Jas. Grant, Sk. Lond., 182. If you don’t fork out the yellow boys (sovereigns) presently, I’ll send a ball through your carcass.

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1840.  Dickens, Old C. Shop, xlii. The delight of picking up the money—the bright, shining yellow-boys.

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