or flatty, subs. (common).—A gull. [A diminutive of FLAT, sense 1.] Formerly cheap-jacks’ = one in a new ‘pitch.’

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  1851–61.  H. MAYHEW, London Labour and the London Poor, vol. I., p. 232. They betray to the ‘FLATTIES’ (natives) all their profits and proceedings.

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