A mother knows her son very long and deeply and may speak overly casually about something that she'd be more circumspect about regarding other men in similar situation. A mother may overemphasize a trait that to outsiders seems normal, because a mother has expectations of a son that she has of NO other males. It may be, and seems to me to be that Westerfield's mom may have wanted him to be some eunuch or celibate monk. So that when she called him a "horndog" it just meant he was a normal functioning member of the male gender.
And that btw is what I mean by "horndog", and also what Nature's God has provided by way of sex. The primal Man, Adam, was inconsolably lonely without a mate -- so the Creator made one up for him. We are men and not animals, controlling and utilizing in the best way, that sexual impulse is not beyond us.
Yet every guy is a horn-dog.
She should have been asked to define horndog.... cuz you're right, she could have meant something completely different.
although, if she meant it to be innocent, why wasn't she called as a character witness.