A-she-ville
n.— «In Asheville, that’s a problem. Straight people here proudly refer to the town as the lesbian capital of the South; when they joke about “A-she-ville,” they’re proud.» —“The Anti-Rights Democrat” by Terry Curtis Fox Huffington Post Nov. 8, 2006. (source: Double-Tongued Dictionary)
Further reading
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I know this isn’t a valid citation, but I lived in Asheville from 1990 through 1999, during the most rapid ascent of Asheville’s gay population, and I can vouch for the authenticity of this term. I’ve heard it for years. This is absolutely a term in common usage among rural Southerners in Buncombe County.