Mentor
From Gomerpedia
J.D. (voiceover): When you really lock in with a mentor, you start to understand the meaning behind their words...
DR. COX: You do whatever you want...
J.D. (voiceover): ... means great idea.
DR. COX: I'm just happy you haven't messed up yet today...
J.D. (voiceover): ... means you're really coming along as a doctor. (JD pats Dr. Cox on the back.)
DR. COX: Don't ever touch me.
J.D. (voiceover): ... means don't ever touch him.