A guy made a video of his dog, then edited in voiceover to make it look they were having a conversation, and the dog could talk back. The YouTube video is called "Ultimate Dog Tease ", and it's racked up over 12 million views in just over a week.
He basically teases the dog by talking about bacon and steak, and makes it look like the dog is reacting. It's pretty stupid, but it's funny and kind of believable in a weird way. In fact, some idiot on YouTube left a comment asking, "Is this real?"