1869. Whyte Melville, M. or N., p. 31. Long before he had reached his uncle’s house, he had made up his mind to go in, as he called it, for Miss Bruce, morally confident of winning, yet troubled with certain chilling misgivings, as fearing that this time he had really fallen in love. 1870. Agricultural Jour., Feb. Men who go in for bathing, running, etc. 1872. Besant and Rice, My Little Girl (in Once a Week, 14 Dec., p. 508). He had, after a laborious and meritorious career at Aberdeen, gone in for Scotch mission work in Constantinople. 1873. Miss Broughton, Nancy, ch. xlv. His cheeks are flushed; he is laughing loudly, and going in heavily for the champagne. 1883. James Payn, Thicker than Water, ch. xx. This is very nice, but I do wonder, Mrs. Tidman, that you never go in for curries. 1890. H. D. Traill, ‘A Noble Watchword,’ Sat. Songs, p. 58. To go in solid for the cause how noble! (though, ’tis true, We must hope at next election that you’ll go in liquid, too). To go in unto, verb. phr. (Biblical).—To have sexual intercourse with. For synonyms, see Greens and Ride. 1892. Bible, Gen. xxx. 3. Behold my maid Bilhah, go in unto her. To go it, verb. phr. (colloquial).—To act with vigour and daring; to advocate or speak strongly; to live freely. Also to go it blind, fast, bald-headed, strong, etc. Cf., Dash. 1689 (in Arber, Eng. Garner, vol. VII., p. 365). When these had shared her cargo, they parted company: the French with their shares went it for Petty Guavas in the Grand Gustaphus. 1821. Egan, Tom and Jerry [people’s ed.], p. 67. Logic, under the domino, had been going it on a few of his friends with much humour. Ibid., p. 22. To go it, where’s a place like London? 1837. R. H. Barham, The Ingoldsby Legends (Ed. 1862), p. 375. For of this be assured, if you go it too fast, you’ll be ‘dished’ like Sir Guy. 1846–48. Thackeray, Vanity Fair, vol. I., ch. 26. ‘He’s going it pretty fast,’ said the clerk. 1849. Dickens, David Copperfield, ch. 6. I say young Copperfield, you’re going it. 1841. Dow, Sermons, vol. I., p. 176. I would have you understand, my dear hearers, that I have no objection to some of the sons and daughters of the earth going it, while they are young, provided they don’t go it too strong. 1864. Fraser’s Mag., Aug., p. 54. But what if that O, brave heart? Art thou a labourer? Labour on, Art thou a poet? Go it strong. 1880. Milliken, in Punch’s Almanack Apr. Nobby togs, high jinks, and lots o’ lotion, That’s the style to go it, I’ve a notion.