Replying 'Why?' repeatedly is one of the most annoying things a person can do.
Do We Have This One?? Rolling Updates. Click the edit button to start this new page. "Why?" Because if you don't, there won't be any content on it. "Why?" Because trope pages doesn't write themselves. "Why?" Because the advanced code that would allow TV Tropes to be fully autonomous doesn't exist. "Why?" Because AI technology isn't that advanced yet. "Why?" Because... er... SCREW YOU, that's why! Now, where was I? Ahem. This trope involves two people. Person A tells person B something. Person B, usually a child, asks why. Person A gives an explanation, and Person B asks "Why?" to the explanation. Repeat until Person A runs out of patience and cuts it short. It doesn't always have to be the one word "Why?", either; it can be a number of variations such as "How come?" and "Why X?" as long as it's the same in meaning. Truth in Television, as anybody who's ever raised a kid can testify.