from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To rev up; work up; generate.
- v. To set up a snare.
- v. To exaggerate.
- v. To generate, devise or create.
- v. To stir up, stimulate, enliven, etc.
- v. to drink or become drunk, especially on gin.
From gin (short for engine or generate) + up. (Wiktionary)
From gin (the drink) + up. (Wiktionary)