A place of meeting. The rendezvous of the beggars were, about the year 1638, according to the Bellman, St, Quinton’s, the Three Crowns in the Vintry, St. Tybs, and at Knapsbury: there were four barns within a mile of London. In Middlesex were four other harbours, called Draw the Pudding out of the Fire, the Cross Keys in Craneford parish, St. Julian’s in Isleworth parish, and the house of Pettie in Northall parish. In Kent, the King’s Barn near Dartford, and Ketbrooke near Blackheath.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Remember Parson Melham * RepNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes