DT OKC Scale Models!

[BDP]

Thanks USG.

Only in the Oklahoma, or in all states?

'YA'LL' is more or less regional, mainly in the southern U.S. You may hear it occasionally in other parts of the country, but it's roots are in the south. I think it's actually taught in grammar school in Texas (kidding).

I am not sure about 'office' as a verb, but I have only heard it in Oklahoma.