(definition) by Vulgar Tongue 1811 Tue May 03 2005 at 23:19:25
UPPING BLOCK
(Called in some counties a leaping stock, in others a jossing block.) Steps for mounting a horse. He sits like a toad on a jossing block; said of one who sits ungracefully on horseback.

The 1811 Dictionary of the Vulgar Tongue.

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