Someone who studies and specializes in the male organ.
A doctor that checks up on the testicles and has to look at someone's dick for eg diseases (STD's), or misshapes.
A plastic surgeon that specializes in operations to the male organ.
"Man, I had sex with this woman, and now I start to have a rash on my penis."
"Visit the Dickologist".
"My penis is too small; I can't pleasure my wife"
"I heard the dickologist at 49th street can lengthen it with a small surgery".
A swarthy young lad whose lame attempts to score some poon are fantastically futile. He will try to grasp any woman with sounds of sweet nothings and promises of Italian food via Facebook message.
GIRL ONE: You see that guy over yonder?
swarthy lad saunters past