A-story
n.— «The A-story, as they call it in the TV biz, concerns Tom’s efforts to interview and then assist Crazy Benny, the tire guy, who insanely slashes prices to the bone.» —“‘Come to Papa’ is an invitation that’s easy to refuse” by Jonathan Storm Philadelphia Inquirer (Pa.) June 3, 2004. (source: Double-Tongued Dictionary)
Further reading
In an interview about her magisterial history of the Great Migration, The Warmth of Other Suns (Bookshop|Amazon), Isabel Wilkerson noted that her own writing process poses the same challenge any writer has: “One word followed by another word...
A Kentucky listener says her father often prefaced statements with the phrase I tell you what’s the truth. This regionalism appears in the Dictionary of Southern Appalachian English (Bookshop|Amazon). A shorter version is I’ll tell you...