Definition: "Doggie" comes from "dog", so it's a pun on dogs. Detailed definition: The word "Duggie" comes from "dog", which is a common noun. It originally meant a dog, but has since evolved to mean any type of animal that is loved or cared for. The term was popularized in the 1960s by the singer and actor Gene Kelly, who often referred to himself as "Duggie" during his performances.