1. To urinate on one's self
2. To injure one's self to the point of bleeding or facial disfigurement
3. To get extremely drunk and pass out in random rooms, lounges, quads, classrooms...
4. To turn on loud music (mostly The Who) just before leaving for the day
4a. To overplay a great song/band to the point where it is ruined for the rest of mankind
5. The act of f*cking up in general
a) Damn I was clarked last night.
b) The girls were disgusted because he was all clarked up at the party.