E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Where do you hand out? Where are you living, or lodging? The allusion is to the custom, now restricted to public-houses, but once very general, of hanging before ones shop a sign indicating the nature of the business carried on within. Druggists often still place coloured bottles in their windows, and some tobacconists place near their shop door the statue of a Scotchman. (See Dickens: Pickwick Papers, chap. xxx.)