Term (name) used to described someone whom is endowed enough to suck their own cock; coined from the Shakespearean legend of a common villager that was able to suck his own cock, when the Queen insisted on a personal demonstration it was revealed that he could indeed suck his steed of a cock...needless to say the village had a new King (King Kenny Blacklung). Ole Kenny-blacklung.
Dude can do the kenny-blacklung. Only a select few are capable of the kenny-blacklung. Those with cocks the size of a Pringles cans can do the kenny-blacklung.