[f. SWAP v. + -ER1.]
1. Something very big; a whopper; spec. a thumping lie. slang or dial.
c. 1700. Kennett, MS. Lansd. 1033. Swapper, a great lie is called a swapper.
1715. M. Davies, Athen. Brit., I. Pref. 36. After they have confessd their swappers to the Jesuits or some of the Regulars.
1818. Maginn, in Blackw. Mag., IV. 321. Im a swapper, as every one knows, In my pumps six feet three inches high.
2. One who swaps, exchanges or barters. slang or colloq.
1680. Reflect. on Late Libel, 28. The Author had been Lecturer there at this day, (for he is no Starter, nor Shifter, nor Swapper of Livings).
a. 1700[?]. in S. de Vere, Americanisms (1872), 308. The headlong fool who wants to be a swopper Of gold and silver coin for English copper.
1893. Columbus (Ohio) Dispatch, 14 Nov. In this case a man casting other than a straight ticket may be called a trader or swapper.