The main idea of this game is to see if something is useless in a fight or not.
Here's how you play: First person would say a random thing, like a basket ball. The second player would say a fact on how you could use it in a fight, and then says another random word, example:
Player 1: Basket ball Player 2: You could throw it at someone. Rubber chicken Player 3: You could wack it with someone: Pen Etc.
Be creative, don't just say: "You could throw it at someone" all the time, say something that matches the object. And don't say "Nothing" or " a black hole" or "Air", it has to have some sort of mass too.