The original image that started a pointless internet fad. |
For the full history, I recommend you give this a read, but I'm going to warn you in advance, the full history is so mind-numbingly inane that I cannot believe people have the time of day to make memes like this a thing.
As far as how to pronounce "doge," there are two factions. It appears that most pronounce it "dohj" with a long o, and there does appear to be more of a historical basis for that, especially in the aforementioned article. However, "dogue" is also a viable pronunciation, as shown in the Wikipedia page for the meme. Personally, I love to use the latter - you wouldn't call someone your "dohj," but you could totally call someone your "dogue!"
As far as the numbers go, a Slate poll has "dohj" slightly ahead, but I believe "dogue" will one day overcome!