Who-Dat Nation or Who-Dat World?

I’m not against the phrase Who-Dat Nation to describe Saints fans everywhere. But the phrase is a touch unoriginal — I think Raider Nation pre-dates it. More importantly, the word nation fails to describe this phenomenon. It’s world-wide. The Times of London has taken up the Who-Dat cause. And today I received a congratulatory e-mail from a friend in Abu Dhabi, who relished BBC Radio’s “fantastic report about the [Saints' Super Bowl] win.”

So why refer to this phenomenon as Who-Dat Nation. Seems to me that Who-Dat World would be more fitting.