E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
a name found in engravings of the eighteenth century, was James Worsdale, the painter and dramatic writer (died 1767).
A housebreakers crowbar. A variant of Jimmy, Jenny, Jinnie, and a diminutive of en-gine. Similarly a spinning-jinnie is a small engine for spinning. These crowbars generally take to pieces that they may be slipped into the pocket.