(thing) by Vulgar Tongue 1811 Thu May 05 2005 at 1:08:45
TUMBLER
A cart; also a sharper employed to draw in pigeons to game; likewise a posture-master, or rope-dancer. To shove the tumbler, or perhaps tumbril; to-be whipt at the cart's tail.

The 1811 Dictionary of the Vulgar Tongue.

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