Any of a number of species of fool, commonly found in pubs. Native mainly to North London. A regular, full of confidence and beer, who knows how to have a good time when nobody else is -Because of him.
(From pub, meaning public house, an establishment providing shelter, sustenance and swigging sessions to the common man, and cock, a derisory term for one playing the fool, derived from its alternative meaning, penis).
Dave woke up at 3am, bleeding, crying, lying prostrate on what used to be his grandma's front step, and clutching a dartboard. It was then he realised he had become the pubcock.
The supposed bone that is the cause of a "boner." When a male becomes aroused, the pubocockus bone moves from a position between the abdominal and pelvic cavities inside of the abdomen to the shaft of the penis. The presence of this bone in the penis makes it hard and, hence, a "boner" ensues.