I can't personally speak to whether or not the members of Catholic Spray are totally rude to Americans (probably), but I do know that their LP from this year, Earth Slime, is a slab of scuzzy, protean surf crust, and it's totally awesome. You can check it out over at their Bandcamp page.
Joining Catholic Spray is recently blawged local power-pop supergroup Road Block and a band called Good Sex. (I don't know who these guys are, but I sure did learn some things trying to Google them!)
The Mean Room is located at 4002 Elkins Ave. in West Nashville. It's a house and people live there, so try to be respectful, and anyway, you wouldn't want to offend Catholic Spray's delicate Parisian sensibilities. Cover is $5.