Do you know what the "what the fluff challenge" is?
It's one of the summer's biggest Internet fads where a human holds a blanket up in the doorway before their animal. They throw the blanket up in the air and duck around the corner before the blanket drops leaving the animal dumbfounded and it's led to some pretty good videos.
That said, none are better than this one. A K9 military reunion using the What the Fluff Challenge.