Classic! Steve and myself, and others no doubt, used to play this game in first and second year. I especially remember it in the maths and statistics classes, where there was a higher female population to offend.
We also did it in the class that Don took, because he is a deaf nerd :)
For those that don't quite understand, the point is to say/yell "penis" (or some equally humerous word) progressively louder than the last person said it. So, Steve would start, then I'd say it louder, then someone else, the me again, the someone else, the Steve would stand up and yell it at the person behind him, and we'd all giggle like pre-pubescent girls. It really was funny.
I just thought it was hilarious that other people did it too!