1853 ‘Mark Twain’ letter 26 Oct. in Letters (1917) I 26: I am subbing at the ‘Inquirer’ office [DA].at sub, v.2
1866 ‘Mark Twain’ letter 30 July in Letters (1917) I 115: The first few days we came at a whooping gait – being in the latitude of the ‘North-east trades.’.at whooping, adj.
1868 ‘Mark Twain’ letter 8 Jan. in Letters (1917) I 9: Jack Van Nostrand, Dan and I, (all Quaker City night-hawks,) had a blow-out at Dan’s house.at nighthawk, n.
1868 ‘Mark Twain’ letter 20 Nov. in Letters (1917) I 156: I am simply lecturing for societies, at $100 a pop .at pop, n.1
1874 ‘Mark Twain’ letter 4 Sept. Letters (1917) I 226: I gave the P.O. Department a blast in the papers.at blast, n.1
1875 ‘Mark Twain’ letter 10 Feb. in Letters (1917) I 250: Your verdict [...] has knocked what little [critical penetration] I did have gally-west!at galley-west, adv.
1879 ‘Mark Twain’ letter 11 Nov. Letters (1917) III 6: We went to a beer mill to meet some twenty Chicago journalists.at beer mill (n.) under beer, n.
1884 ‘Mark Twain’ letter 21 Aug. Letters (1917) II 443: Warner and Clark are eating their daily crow in the paper .at eat boiled crow (v.) under eat, v.
1885 ‘Mark Twain’ letter 11 Sept. in Letters (1917) II 460: Flowers and general ruck sent to him by Tom, Dick and Harry from everywhere .at ruck, n.1