If you can't find it I can easily explain it:
It's a drama club game usually, but it involves four people at a time. Two people are assigned to talk with one another as the "audience" chooses a scenario for those two to act out, like going to the movies for instance. The two people then get assigned one "Pillar" or person who they can tap to come up with a random word in a sentence. For instance, if the topic the audience chose was going to the movies, the two people do a little improv skit of the two characters they represent going to the movies and quite often they'll say things that require their "pillar" to fill in words for them like, "Sorry I was late, I just got back from the..." then they would tap the pillar and the pillar can come up with any word they want like "ballet" or whatever and then the person has to say "I just got back from the ballet." They can do this as often as they want in the game. Sorry if that sounds confusing, it's really a lot easier when you actually play it ^^;