The phrase became a widely shared internet joke through short-form video, where creators paired it with clips of dogs sitting, staring, barking or otherwise behaving in unexpectedly human ways. Its appeal comes from its simplicity: the question needs no setup and works over almost any odd pet moment. As the format spread across TikTok, Instagram Reels and YouTube Shorts, it turned into a familiar reaction cue, so viewers now recognise the joke before the dog even does anything strange.