polewiglocal.|ˈpəʊlwɪg| [See polliwog.] 1. A tadpole: see polliwog. 1882in Ogilvie. 2. The name given by the Thames fishermen to a small fish, the Spotted or Freckled Goby. 1880–4F. Day Fishes Gt.Brit. I. 166 Gobius minutus... Freckled or spotted goby. Polewig or pollybait, Thames local name.