[short for ‘demonstration’]
1. v. To demonstrate a product or prototype. A far more effective way of inducing bugs to manifest than any number of test runs, especially when important people are watching.
2. n. The act of demoing. “I've gotta give a demo of the drool-proof interface; how does it work again?”
3. n. Esp. as demo version, can refer either to an early, barely-functional version of a program which can be used for demonstration purposes as long as the operator uses exactly the right commands and skirts its numerous bugs, deficiencies, and unimplemented portions, or to a special version of a program (frequently with some features crippled) which is distributed at little or no cost to the user for enticement purposes.
4. [demoscene] A sequence of demoeffects (usually) combined with self-composed music and hand-drawn (“pixelated”) graphics. These days (1997) usually built to attend a compo. Often called eurodemos outside Europe, as most of the demoscene activity seems to have gathered in northern Europe and especially Scandinavia. See also intro, dentro.