Alrighty, I'm going to post a game.
It's pretty simple...
I will name an object, word, phrase, or name, and the next poster will think up something that is somehow related to what I posted. From then on, the people after will think up something related to what the poster above them named.
Example:
I say "Light", next person can say "Sun", next can say "Planet", and so on.
I'll start off with "Cannibal".