To PINCH,
to steal or convey slily any Thing away. To pinch on the Parsons side; to sharp him of his Tithes. At a Pinch, upon a Push or Exigence.
· 
· 
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).