Google Bomb

A Google Bomb is essentially a practical joke being played on a search engine (Google) that use anchors to produce search results. If many people link a target webpage to an amusing search phrase, in this case, "hardhats liberal alien xenophobic", then the target webpage will appear as a search result with a high rating. For this particular Google Bomb, the target webpage is a site about the 1975 Super Bowl.

http://people.colgate.edu/myeh/core147/a5/index.html