Dog with the butter, Butter Dawg.

The dog with the butter

A domesticated wolf breed known as a "Golden Retriever" associated with a portion congealed milk fat placed upon its own head.

A dog, or canine animal of any sort, that has butter or margarine somewhere on its body, usually the head.

A wholesome meme of a dog with a pat of butter on his head. This meme was first created by 2 twitter users of the same name. The memes consist of a dog doing everyday dog tasks.

A dog trained to lick a woman's pussy.
The woman's pussy is smeared with butter and the dog licks it. Hence the name.

A mainly Japanese pursuit in which liberal amounts of butter (slightly warmes) are smeared on a bird's minge, and a dog (normally a Golden Retriever) is then brought in to lick it off.