Green’s Dictionary of Slang

(US) a euph. for damned adj.

1843		W.T. Thompson Major Jones’s Courtship (1872) 100: I don’t blieve you have ever hearn of jest sich a dingd fool trick as they played on me.
1859		H.E. Taliaferro Fisher’s River 39: Mosey! Trollop! Git out’n here, you dinged old sloomy Yahoo!
1864		‘Edmund Kirke’ Down in Tennessee 94: Ye doan’t ’spose Tom’s a secesh? a dinged, rottin-souled, blue-blasted, son uv a Rebel, does ye?
1873		C.H. Smith Bill Arp’s Peace Papers 78: ‘I bleeve I’ll unpack,’ sed one, ‘dingd if I’m afeerd of a blu taled fly; I’m goin to set down and be esy.’ ‘In a horn,’ sed I.
1888		Butler Citizen (PA) 15 June 1/4: ‘Dinged ef I ain’t glad,’ he continued.
1890		Bird o’ Freedom 15 Jan. 1/4: You are all right for a soldier, but I’m dinged if you ain’t got considerable to learn before you will be a success as an office boy.
1899–1900		C.L. Cullen Tales of the Ex-Tanks 58: Dinged if every one of ’em didn’t say [...] ‘Hello, there pal!’.
1910		O. Johnson Varmint 113: I’ll be darned – no – yes – dinged if it isn’t the Dink chasing the Canary!
1926		Z. Grey Fighting Caravans (1992) 88: One of them d-dinged Kiowas.
1932		Z. Grey Robbers’ Roost 120: Dinged if I know.
1940		E. Curry Hysterical Hist. of Aus. 40: A pretty dod gasted ding-whanged, flim-flammin set of thieves, rogues and vagabonds.