The action of sticking pins and needles into one's penis while erect and then receiving fellatio (using one's blood as lubricant) as to imitate the award-winning motion picture "Hellraiser". Next, once approaching the peak of orgasmic ejaculation he or them who receives the oral pleasure will exclaim "I AM PINHEAD, the prodigal son!"
My girl gave me the sickest pinjob last night.
I was pissing in all directions after that pinjob last night.