EMPTY,
as, The Cull looks Empty; or, 'Tis all Empty; i.e. the Person or House has not the Riches reported, or is not worth attempting.
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Entry taken from 1736 Canting Dictionary, by Nathan Bailey.
The Vulgar Tongue originally collected by Grose, 1811.
Also see examples in Canting Songs and Slang Rhymes collected by John S. Farmer (1896).