Oh well, if you're the only company I might as well go to bed (slinks off muttering something about many a rose is born to bloom and blush unseen to waste it's sweetness on the desert air)
A barge is a canal boat and the Butty is the cargo container towed behind the barge. They were usually horse drawn. Through canal tunnels such as the Dudley tunnel, they footed the boat through, while the horse went the overland route!