I think that this might be close to: Wɪər ðæ gɔːwɪn? This would roughly be Wi-er tha gaw-in? In this example, the first word would be the two words where and are put together Wɪər, but somewhere in my memory, I have maybe heard an s find its way in to give something like Wɪərs ðæ gɔːwɪn?(Wi-ers tha gaw-in?), but I am not not so sure about this.
Now I know that Yorkshire is a big place with many different regions and dialects, but I'm sure we can keep this topic peaceful. (No Lankies allowed)