science-fiction fandom n. Another voluntary subculture having a very heavy overlap with hackerdom; most hackers read SF and/or fantasy fiction avidly, and many go to cons (SF conventions) or are involved in fandom-connected activities such as the Society for Creative Anachronism. Some hacker jargon originated in SF fandom; see defenestration , great-wall , cyberpunk , h , ha ha only serious , IMHO , mundane , neep-neep , Real Soon Now. Additionally, the jargon terms cowboy , cyberspace , de-rezz , go flatline , ice , phage , virus , wetware , wirehead , and worm originated in SF stories.