Green’s Dictionary of Slang

a euph. for damn! excl.

1787		R. Tyler Contrast II ii: Dang it all, I can’t speak them lignum vitae words—.
1793		F. Reynolds How to Grow Rich III ii: Dang it, if ever I squeeze a hare again.
1800		‘Song’ in Jovial Songster 67: Dang it! I shall never vorget how they maul’d me!
1810		C. Dibdin Yngr Village Fete 32: But dang it all, the women are the same.
1827		T. Morton A School For Grown Children II ii: And dang it! there’s no getting the pepper out of him.
1838		‘The Gentleman in Black’ in Bentley’s Misc. IV 621: ‘Well, dang it,’ said Hodge.
1841		‘The Sailor Capering Ashore’ Dublin Comic Songster 99: Poll, dang it, how d’ye do?
1856		G.G. Foster N.Y. by Gas-Light (1990) 184: ‘Dang it,’ said he, at length – ‘where is it?’.
1867		W.H. Smyth Sailor’s Word-Bk (1991) 181: Cheating the Devil. [...] hard swearing as [...] dang you, be darned.
1870		C.G. Leland ‘Steinli von Slang’ in Hans Breitmann in Church 138: Boot shoost ash de liddle man vent, he / (Der Ritter) astonished, cried ‘Dang!’.
1879		G.R. Sims Dagonet Ballads 69: Dang it all, Jack, it’s hard when it comes.
1895		J. Greenwood Behind A Bus 135: Danged! that is ork’ard now.
1898		H.B. Vogel Maori Maid 119: Dang it all!
1917		Van Loan ‘By a Hair’ in Old Man Curry 87: Dang it, Al, a man ought to be arrested for starting a horse in that condition.
1945		(con. 1923) R. Westerby Mad in Pursuit 77: Dang’un.
1946		D. Stivens Courtship of Uncle Henry 38: Dang it all.
1958		D. Stivens Scholarly Mouse and other Tales 100: By dang! [...] Dang me, no!
1960		T. Southern ‘Red-dirt Marijuana’ in Southern (1973) 12: He [...] began kicking her gently on the flank. ‘Git up, dang it.’.
1999		Indep. Rev. 7 June 18: Dang! there’s the irony creeping in.
2003		J. Lethem Fortress of Solitude 430: Dang, take the butts, but that’s my drawing shit.