Courtney McLean studied theater in San Diego and plied her craft in New York, but she’s found her artistic home in Minneapolis — as an actress, comedian, storyteller and, now, musician. Courtney McClean & the Dirty Curls perform what they call “naughtybilly” — bluegrass music with sex-rated lyrics. 3-Minute Egg went to the release party of the group’s debut CD and spoke with McLean about her muse and her mouth. WARNING: Explicit language.