An individual who does not know the difference between God and themselves. Namely that God doesn't think he's a doctor. Arrogant, abrupt and often unable to consider opinions which are not their own. A person who is unable to contemplate not knowing the solution to something and is incapable of asking for assistance tending to fall back on cliches to hide their lack of knowledge like "eat less and exercise more" or "bed rest and plenty of fluids". An individual who simultaneously cultivates disdain through arrogant comments then pleads victimhood. Unable to cope with their decisions being challenged.
Either a person who heals people with their magical smarts or a miserable kid with that last name who, believe it or not, KNOWS THAT IF HE BECAME A DOCTOR HE WOULD BE DR. DOCTOR. Those of the latter groups would like to tell you to STOP SINGING DOCTOR DOCTOR. They really don't like that and you really aren't being original.
John : DUDE, wouldn't it be so sweet if Josh Doctor became a doctor?
Then he would be Dr. Doctor
*bursts into song*
Humphrey : C'mon man, could you imagine how often he gets that?