1902 in ‘O. Henry’ Works 436: You know what I’d do if I was main finger of dis bunch?at main finger (n.) under main, adj.
1903 ‘O. Henry’ ‘Fourth in Salvador’ in Works 462: Poor Billy. He’s got bugs. Sitting on ice and calling his best friends pseudonyms.at have bugs (in the head) (v.) under bug, n.4
1904 ‘O. Henry’ Works 10: We march between little casino and the North Grand Custodian of the Royal Hall Bedchamber [HDAS].at little casino, n.
1904 ‘O. Henry’ ‘Fox-in-the-Morning’ in Works 557: The ‘jack-rabbit line’ could mean nothing else than the mule-back system of transport.at jack rabbit, n.1
1904 ‘O. Henry’ in Works 257: ‘You’re off your kazip,’ declared another of the gang.at off one’s kazip (adj.) under ka-zip, n.
1908 in ‘O. Henry’ ‘Little Speck in Garnered Fruit‘ in Works 1271: I’ll step down and cop one out for you, see.at cop out, v.1
1908 in ‘O Henry’ ‘Supply and Demand’ in Works 726: In fact, I’m the Big Stick.at big stick (n.) under stick, n.
1909 ‘O. Henry’ ‘Higher Pragmatism’ Works 780: Plato is boiler-plate; Aristotle is tottering; Marcus Aurelius is reeling.at boilerplate, n.
1909 ‘O. Henry’ in Works 1604: Say, Shack, ain’t that a hell of a note?at hell of a note (n.) under hell, n.