TUMBLER,
a Cart. To shove the Tumbler; To be whipt at the Cart's Tail; also one that decoys, or draws others into play; and one that shews Tricks with and without a Hoop.
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Entry taken from 1736 Canting Dictionary, by Nathan Bailey.
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Tumbler in the 1811 Vulgar Tongue
Also see examples in Canting Songs and Slang Rhymes collected by John S. Farmer (1896).