A cock doctor is a qualified wanker, who pulls himself for a living and is far worse than an everyday wanker. They do this naturally and constanly in their behaviour and think that other people are eating up their bullshit. Cock doctor's are egocentric and unaware of themselves.
A guy winking at his own reflection....COCK DOCTOR!
Someone who engages in sexual behaviour with members of the same sex.
"Susith is such a cock doctor!"