Making plans to chillax with one of the original "doctors" (A.K.A. badass dudes) in advance, as to warrant the label "appointment." Dissimilar to simply "hanging out" with a "doctor" for the fact that it takes planning in advance to have a "doctor's appointment" with one of the doctors.
Guy 1: "Dude, I've got a doctor's appointment tomorrrow, you want to come over?"
Guy 2: "F*CK YEA"