BLEEDING-CULLY,
an easy Fellow, this is profuse with his Money, or persuaded to support all the Exravaganies of his Companion or Mistress, at his own Expence.
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Entry taken from 1736 Canting Dictionary, by Nathan Bailey.
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Bleeding Cully in the 1811 Vulgar Tongue
Also see examples in Canting Songs and Slang Rhymes collected by John S. Farmer (1896).