Green’s Dictionary of Slang

(US) a fat old woman, often a slovenly drunkard; thus ext. as old haybag; also as v.

1842		Whip & Satirist of NY & Brooklyn (NY) 31 Dec. n.p.: the whip wants to know What two Jew looking dogs were [...] turned out of the Franklin first tier [...] Lash them two old hay-bags.
1859		Hotten Dict. of Modern Sl. etc. 49: HAY BAG, a woman.
1865		Leaves from Diary of Celebrated Burglar 19/2: Don’t ‘crack’ to the old hay-bag, or we’ll be ‘spotted’ from here to France.
1869		Hawaian Gaz. (Honolulu, HI) 6 Jan. 1/6: When we enetered, the ‘hay-bags,’ as Charley termed his wives, were sitting about.
1873		Sl. Dict.
1895		Truth (Sydney) 17 Feb. 3/3: [of judicial robing] But to all men of sense, / Such a fussy pretence, / Proclaims every Judge an old haybag.
1902		Bulletin (Sydney) 13 Dec. 21/1: [T]he skipper romped up and down the poop and cursed the Army, from the General to the latest enlisted ‘hay-bag.’.
1906		Sun. Times (Perth) 21 Oct. 1/1: Only the thoughts of diminishing takings prevents her [i.e. a landlady] from engaging barmaids of the hay-bag order.
1908		Dly Press (Newport News, VA) 29 Apr. 5/4: If you think I’m going to trot around Washington with a woman who insists on turning herself into an old dried-up haybag [etc].
1918		G.E. Griffin ‘The Haybag’ Ballads of the Regiment 30: She was queen of ‘soap-suds’ row, / The ranking ‘hay-bag’ you’d soon know.
1929		A.J. Barr Let Tomorrow Come 44: You get a hideful o’ scat once in a while an’ a flop with some old haybag.
1935		N. Algren Somebody in Boots 266: Girls who picked up drunks were called haybags. [Ibid.] 278: ‘How long yo’ been haybaggin?’ he asked, and Norah made no reply. ‘Hay-baggin’ don’t pay, Blondie.’.
1944		Pittsburg Press (PA) 24 Jan. 15/1: ‘A l;oud-mouthed, uncouth, odiferous haybag’.
1949		Monteleone Criminal Sl. (rev. edn) 114: hay bag A female tramp; a low dirty prostitute.
1953		‘John Eagle’ Hoodlums (2021) 105: Discounting the [projection] machines after one reel or sticking it through. Mostly old hay-bags.
1959		D. Niland Big Smoke 43: Come on, you old haybag, she told herself. Get up.
1962		Ragen & Finston World’s Toughest Prison 803: hay bag – A woman vagrant.
1994		L.A. Times 20 June 23/2: ‘I wish you could have been along, instead of the Old Haybag’.
2005		J. Stahl I, Fatty 225: Mrs. Hubbard, a feisty old haybag.