What's a Hose Hall?

Thanks for all the ideas about how to turn up the volume on the next TDA tour. Please keep 'em coming!

Reaching out to second- and third-generation Eastern Europeans is an intriguing concept. Some of the guys from Polkacide have mentioned that some people with that ethnic background now consider it "cool" and nostalgic to listen to polkas again -- for the very same reasons mentioned here.

But now I must reveal my ignorance: What's a Hose Hall? Can't reach out if I don't know the lingo ...