subs. (old).1. Gin. For synonyms, see DRINKS.
1859. G. A. SALA, Gaslight and Daylight, xxiii. The stuff itself, which in the western gin-shops goes generally by the name of blue ruin or short, is here called DUKE.
2. (cabmens).A horse. For synonyms, see PRAD.
3. (thieves).Any transaction in the shape of a burglary; e.g., I was Jemminy to their DUKE = I was privy to the robbery.