A state of mind and body that is incepted after a long night of partying in which causes you to lose all grasp on reality and procastinate to your maximum capability. Common side affects are: Hands in pants for extended amount of time, continous gas release, temptation to consumption of "couch pizza", refusal of changing your pants you pissed in hours ago, allergies to any light source, smelling like a foot, upsett stomach, and Diarrhea.
I'm durfin hard dude.
I'm in a strange state of durf.
hey man! whats ya doin?...Durfin