Grose and Egan (1823) also attest gaff which the mean a fair or carnival. Grellmann (1787) collected the forms Gaue; Gal ‘A Village; A Hamlet’ from Continental gipsies.
Simson (1865) only attests gave as a village he also collected the term forest ‘a town’.
Smart & Crofton (1875) collected the form Gav., n., ‘Town, village’ from English Gypsies.
Attested by Canadian Paul Pope (2013) with the same meaning.
In the twenty-first century male fairground workers, especially the ones who work on the faster roundabouts such as the waltzers, are called gaff-lads. This is the origin of the English and Scots slang term for a house or flat gaff.