Fan Casting A Dog Named "Dog" in Sort by Tropes

Some completely uncreative owner has decided the family pet will be known as Dog. Or, perhaps, a similarly uncreative author names their feline character Kitty. Alternately, the creature in question does have a less Shaped Like Itself name, but for whatever reason, Alice the Pig prefers to go as Piggy. Usually but not always applied to animals; robots imaginatively named Robot and the like are part of this trope, too. Remarkably common in children's shows, despite the obvious problems it should theoretically cause.