A sexual position where the giver and receiver lie on their sides and the giver enters the receiver from behind. This position can either be initiated on its own, or can begin from the Doggystyle position. When beginning from the Doggystyle position, the two dogs simply fall over on their sides.
The Lazy Dog is the first step in the modified Cave Canem. In this instance it precedes Doggystyle.
I was so tired from work, all I could do was the Lazy Dog last night.