When the man's pubic region grows to such an extent, that it integrates with the thigh and scotum hair thus giving the appearance of a "dick beard".
Ruben never trims his pubs saying that "that shits for metrosexuals", he must be proud of his long ass dick beard.
1. Someone so hairy that his pubic hair goes up to his chest, and around the waist.
2. See Chuck Norris
Chuck Norris is so powerful that he wears a black belt that he grows on his dick.
Monkeys? It's natural for them... A dick beard, of course.