U.S. slang. [f. THUNDER sb. + -ATION.] Used as a vague expletive or intensive: cf. THUNDER sb. 4.
1833. Elizabeth-City (NC) Star, 18 May, 1/3. Any pray good Mr. Printer, who is this Nelly Fires thats kicking up such a thundering hul-loo in South Carolinashe must be a rip-roarer, a raal swinge cat, I sorty reckon.My honey and thunderations!
1844. Maj. J. Jones, Lett. to Henry Clay, 9 Aug., in Brooklyn Star (5 Sept.), 2/1. Id see em testatiously quattlebumbed into everlasting thunderation afore Id vote for em, or any of ther frends.
1856. Mark Twain (Snodgrass) in Saturday Post, 14 Nov., in A. B. Paine, Boys Life of Mark Twain (1916), 66. When we got to the depo, I went around to git a look at the iron hoss. Thunderation! It wasnt no more like a hoss than a meetin-house.
1887. Century Mag., Nov., 44/2. Everybody wants to know who in thunderation Rache will marry.
1901. Munseys Mag., XXIV. 792/2. I like you all to thunderation , he said earnestly, dropping all reserve, but [etc.].