When I was an undergrad at Berkeley ('89-'93), we adopted the MIT speak wholesale. It's amazing how easy it is to start saying "foodp". Evolution from MIT? We'd sometimes use Scheme syntax, so it became "food?" to which the answer might be "#t". The question mark syntax was just too close to normal, so we mostly settled on "foodp". At the time, the big game was netrek, and that led to its own vocabulary that showed up elsewhere. (Notably, "doosh" and "ogg". As I understand it, "doosh" originated as a verbal sound effect by a particular player; he'd be yelling it out as he was shooting...)