A word/phrase used to insult or taunt somebody because their neck resembles a dick or they have a birthmark/scar on thier neck that looks like a dick. Variants of the phrase are 'Cock Throat', 'Adam's Dick' , 'Penis Esophagus'.
Person 1: Haha you look stupid
Person 2: Oh yea? Well you've got a dick neck!
Everybody: LOLOLOL!! Hahahaha