1. The act of inserting the penis into a dog's ass.
2. Sexually violating a canine.
3. Having half human, half-dog children with a black labrador retriever, or perhaps some other smaller species of dog.
eg. "Bret Jenkins raped that dog up the ass!"
eg. "Oh Jesus, it's that boy who stuck his ding dong up that dogs bum."
eg. "It's that dog rapist!