An extended insult of Doyle. A Dog's Doyle refers to a person who is such a Doyle that even a dog, an animal of much lesser intelligence than a human, sees the given person as being a Doyle, even in their eyes. Thus rendering that person a 'Dog's Doyle'.
Ideally, a panel of six dogs maybe needed to judge a person on their Doyleness with loud barking, rendering the person truly a Dogs's Doyle.
"Oli, you're an absolute Dog's Doyle!"
"With talk like that you'll find yourself in front of a panel of dogs!"
"What have you done now you straight Dog's Doyle?"