In Gavin and Stacey what is the significance of the joke This is Owain Hughes - and before you ask no he doesn't that all the Welsh characters laugh at and the English characters don't seem to get?

In "Gavin and Stacey," the joke about Owain Hughes serves to highlight the cultural differences between the Welsh and English characters. The humor relies on a shared understanding of Welsh stereotypes and cultural references, which the English characters fail to grasp, emphasizing the divide between the two groups. This moment not only adds comedic value but also underscores themes of identity and belonging that run throughout the series. It showcases how humor can be deeply rooted in regional culture, creating a sense of camaraderie among the Welsh characters.