Three word story is a game in which a story is built by multiple people, who use three words each turn. It is a common favorite of forum gamers, since it is easy to explain and play in a linear, structured fashion. An example game goes as follows:
First poster: A fat man...
Next Poster: ... walked into a...
Next Poster: ... car and it...
Next Poster: ... was very painful...
Next Poster: ... but he jumped...
Next Poster: ... back up and...
Next Poster: ... dug a really...
Next Poster: ... small cave that...
Next Poster: ... had two red...
Next Poster: ... cats coming out...
Next Poster: ... from some smoke...
And so on.