Perhaps the most fun part about debates over sports dynasties is that there is no set definition for the term.
One reason sports talk radio hosts go to this topic whenever a team wins a second championship in "x" amount of years is because it is bound to light up the phone lines and draw reactions on websites such as Facebook and Twitter. Any team that is said to be a dynasty will immediately be compared to dominant sides from prior generations by fans and analysts alike.
One could use that famous definition linked to something entirely different for labeling a sports dynasty: "I can't define it, but I know what one is.