Note; E-NED has THE GENTLEMAN IN BLACK VELVET
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A Jacobite phrase, referring to the belief that the death of William III was caused by his horse's stumbling over a mole-hill, and the animal became a toast in certain circles
under this disguise.
From: The English Illustrated Magazine,
Volume XIX, April to September, 1898
Ben the Mole-Catcher, by J.J. Britton