WardCunnigham created the site and the WikiWikiWeb machinery that operates it. He chose wiki-wiki as an alliterative substitute for quick and thereby avoided naming this stuff quick-web. An early page, WikiWikiHyperCard, traces wiki ideas back to a HyperCard stack he wrote in the late 80's.
See also one of these links:
get some answers on the WikiWikiWebFaq
get to know more about the WikiHistory
Can I really do something here?
Yes you can. But you might want to test in the WikiSandBox