To apologise insincerely to appease someone in the short term, in the way that a dog will look submissive while being scolded but will repeat the same behaviour again once their owner has gone.
I sent a complaint and they wrote back with an apology, but they were just dog sorry as it happened again a week later!
To wipe ones bare behind over someone else's pillow or bed linens, typicall without the other person's knowledge.
John broke into Bill's room and sorry dogged his pillow.