Wrinkly Dog is a term used to describe three different breeds of dogs: PUG, Sharpei, and XXXXXXX. The PUG is a small breed of dog with a wrinkled face and a curly tail. The Sharpei is a medium-sized breed of dog with a wrinkled face and a short, bristly coat. The XXXXXXX is a large breed of dog with a wrinkled face and a long, silky coat. All three breeds have wrinkled faces, which is why they are referred to as Wrinkly Dogs.