Webster’s Revised Unabridged Dictionary · 1913 Jemmy Jem′my, a. [Cf. Gim, and Gimp, a.] Spruce. [Slang, Eng.] Smart. Jem′my, n. 1. A short crowbar. See Jimmy. 2. A baked sheep's head. [Slang, Eng.] Dickens. ‹ Jemminess Jeniquen ›