This weird sport is pretty straight forward. A bunch of English blokes go to the top of Cooper's Hill in Gloucester, England, and they chase a cheese wheel that has been pushed down the hill. According to the Wikipedia page, it can be summarized as such: "Twenty young men chase a cheese off a cliff and tumble 200 yards to the bottom, where they are scraped up by paramedics and packed off to hospital". Injuries such as broken bones, sprained ankles and concussions are so common that last year's "race" was cancelled. Here's to hoping this year the cheese will roll.
What cheese wheels are really for.