Do a quick google search on it Nameless. It's a relatively popular sport in the US at least. It's interesting. I've never played it, nor seen it played, but it's pretty big.

If you've ever seen the movie "American Pie", at the very end, when that sissy guy is about to go running to go sing in the choir with his newfound girlfriend, they are playing lacrosse (with Stifler).

Alexi