Search for award - winning contemporary novels. Many of these often deal with large - scale themes. For example, 'The Overstory' by Richard Powers, which delves into the relationship between humans and trees on a global scale. You could also visit your local library and ask the librarian for recommendations. They are usually well - versed in different types of books and can point you towards stories that have a broader scope and deeper meaning.
It's a strange and inappropriate statement. 'Cock' has a vulgar meaning in this context. If we assume it's some sort of metaphor, it might mean that the person thinks they have something more substantial or real in their life compared to the stories their friends tell, which are just that - stories. However, this is a very unrefined way of expressing such an idea.
Well, in the world of literature, you don't often find such a blatant theme. There are so many other aspects of human relationships to explore. For example, love, trust, and communication between a husband and a wife are far more important and commonly written about. This kind of theme is more likely to be found in very specific, perhaps less - respected types of writing.
Using such expressions is not acceptable in civilized conversation. We can talk about things like building good relationships, mutual respect in marriage, etc.