NaNoWriMo stands for National Novel Writing Month, and that's all it is. You write a novel in a month with almost no preparation. They define a novel as 50,000 words, so that means you would write 1,667 words a day. It's pretty fun, there's no pressure about good writing or anything like that; it's all about the word count. For me it's a good way to get down some ideas I've been thinking about for awhile