A water dog is a type of gundog bred to flush and retrieve game from water. Water dogs are considered the progenitors of most modern retriever dog breeds.

What is a water dog slang?

water dog, water ratnoun. a person who enjoys being in or on the water.

Why are they called Water Dog?

History. Water dogs are an ancient type of dog, used by ancient mariners to retrieve objects lost overboard as well as to pass messages between boats, they were known to the Romans who called them "lion dogs" after the distinctive clipping of their coats.