Ivories
The Slang Dictionary Etymological Historical and Anecdotal · 1913 · p. 15
teeth; “a box of IVORIES ,” a set of teeth, the mouth; “wash your IVORIES ,” i.e. , “drink.” The word is also used to denote dice.
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Vocabulum; or The Rogue's Lexicon (1859)
A Dictionary of the Vulgar Tongue (1811)
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