The phrase "what does" is typically the beginning of a question asking for an explanation or meaning related to something. It can lead into various questions such as "What does this mean?" or "What does the fox say?"—the latter also a famous viral song by Ylvis. If you are referring to "What Does the Fox Say?," it is a well-known electronic dance novelty song and viral video by Norwegian comedy duo Ylvis, which humorously questions the sound a fox makes. The song achieved massive viral success after its release in 2013 and became a pop culture phenomenon. The video features whimsical sounds attributed to a fox and has been viewed over a billion times on YouTube. If your question is about something else starting with "what does," please provide more context so I can give you a precise answer. Otherwise, the phrase itself introduces a question seeking clarification or an explanation about the subject following it.