Meet Ellie the golden retriever who appears to have experienced what the classic pop song is about.
This video shows Ellie lying in her owner's bed, covered with a blanket, her paws spread out. We can see her perfectly white teeth, as she is grinning. However, her eyes are almost closed...what a mystery!
Ellie's owner can be heard saying off-camera: "Is this normal? What is she doing?"
You are welcome to suggest an explanation.