Green’s Dictionary of Slang

1. poultry, when served for a meal [the hollow cavity within a cooked bird].

1823

‘Jon Bee’ Dict. of the Turf, the Ring, the Chase, etc.

2. (US) in a variety of combs., describing an area of a town or an out-of-the-way area; usu. combined with a ref. to poor or foreign groups, e.g. dead man’s hollow, frog hollow, Irish hollow, piggy hollow, punkin hollow, skunk hollow, sleepy hollow, smoky hollow, snuff hollow.

1891		J.A. Riis How the Other Half Lives 161: Even across the Harlem River, Frog Hollow challenges the admiration of the earlier slums for the boldness and pernicious activity of its home gang.
1935		‘Miscellany’ AS X 80/1: Possum Hollow [...] is one of the most popular expressions used to relegate a settlement to the ‘backwoods of nowhere’. I have also heard Dog-Trot Hollow and Picayune Hollow [...] Diggins Hollow.
1965–70		in DARE.
1982		(con. 1970) J.M. Del Vecchio 13th Valley (1983) 81: A depressed area of Mississippi, an area known as Nigger Hollow.