I make it a point each Monday to read the Contrarian Chronicles by Bill Fleckenstein on Msn Money. In today's article, while venting about what he perceives to be an irrationally exuberant market, Bill may have unwittingly given us one of the best definitions of a bull market I've come across in a long time:
"[...]bulls deemed Cisco Systems' sluggish business to be Cisco-specific last Wednesday, with most tech stocks rising despite the news, although virtually every time the company has reported good news, those very same bulls have deemed it relevant to the whole tech tape."