PSD or Post-Springfest Disorder is a common ailment that is native to Union College in Schenectady, Ny. It commonly affects college students and that one old cleaning lady. The symptoms are fatigue, headache, and massive hang overs after 24 consecutive hours of insane fun, moshing, and alcohol consumption.
Man this sucks, class starts back up tomorrow, and I have such a horrible headache. It must be a wicked case of PSD.