verb. (colloquial).—1. To travel by train, usually with it: cf. ‘’bus it,’ ‘foot it,’ ‘tram it,’ etc. Whence TO TRAIN UP = to hurry.
1889. E. R. PENNELL, Our Journey to the Hebrides, in Harper’s Magazine, lxxvii. 954. From Aberdeen to Edinburgh we TRAINED IT by easy stages.
2. (American).—To romp, ‘carry on,’ act wildly. [BARTLETT: ‘almost peculiar to the girls of New England,’ but cf. sense 3.]
3. (colloquial).—To consort with on familiar terms: e.g., ‘TRAINING with such a crowd does not suit me.’
