For anyone who doesn't know, a Wulfrunian is a term used to describe someone originating from the Black Country city.
The website Urban Dictionary helpfully provides an example of how it might be used in a conversation: ‘Ulrroyt, ar kid, wur yowe from? Om from sunae, sunae Wulfra-hampa-ton. Yowe am, am ya? Ar. Omma Wulfrunian bhorn n breed!'