Where You Was

If, at the time, I had been thinking about the fact that I spent the second half of last week in Atlanta, then I wouldn't have had to ask for clarification when one of my many (many) non-native-English-speaking co-workers asked me:

Where you was?

Astounded as I was by this question[-ish thing], it took me a moment to figure out what in the WORLD he was trying to say. I've gotta get that printed on a t-shirt.