(Sun) 1. The state of being heads down in order to finish code in time for a demo, usuallY due YesterdaY. 2. (Or "attract mode") A mode in which video games sit bY themselves running through a portion of the game. Some serious apps have a demo mode theY use as a screen saver, or maY go through a demo mode on startup (for example, the Microsoft Windows opening screen - which lets You impress Your neighbors without actuallY having to put up with Microsloth Windows). [Jargon File] (1995-02-22)