ON PROMOTION, adv. (common).—1.  On approval; (2) unmarried.

1

  1848.  THACKERAY, Vanity Fair, xliv. ‘You want to smoke those filthy cigars,’ replied Mrs. Rawdon. ‘I remember when you liked ’em, though,’ answered the husband…. ‘That was when I was ON MY PROMOTION, Goosey,’ she said.

2