Wot n Tartnation? Has morphed into a strange new meme. In fact, in spite of appearances, I'm not even totally sure we can call it the same thing.
The meme simply used to feature the image macro of a dog with a hat on and the text 'wot in tarnation?' in response to some kind of caption that is supposed to be confusing to rednecks.
Like so:
Recently, the morph changed the meme into different characters wearing the same hat and a caption that has a word ending in "___-ion" replacing the original "tarnation".
This has given rise to some ridiculous examples and changed the meme into what it is now: