Wiktionary
puppy dog
n. A puppy; a young dog.
Usage examples of "puppy dog".
More years passed and Faith returned with her baby girl and a puppy dog, both gifts from Frank, whose worthless hide had been shipped to Vietnam, from whence it did not return.
He might have been considered the puppy dog of Bittle, but he knew what buttons to push.
With her hands and mind busy with a flood of customers, Morgana reminded herself that she would have no trouble handling a cocksure storyteller with puppy dog eyes.