Via kottke.org, Wikigroaning is the dubious pastime of comparing the length and quality of a Wikipedia article on a general-interest topic (say, Knight) to a similarly-titled one on some wisp of useless fanfluff (Jedi Knight). For instance, while the article on Trail of Tears runs to 7 screens, the one for Tears for Fears runs to 13.
Extra points, I suppose, if you’ve never even heard of the pop-culture half of your article pair.