On Monday, April 17, 2017 at 6:39:00 AM UTC-5, Its Me wrote:
On Monday, April 17, 2017 at 1:01:19 AM UTC-4, wrote:
On Mon, 17 Apr 2017 03:24:35 -0000 (UTC), Bill
wrote:

Maybe SC, but having lived in Mississippi and working for a Texas company I
was informed All y'all was plural.

Absolutely
Y'all is singular and All Y'all is plural.
Just ask Jeff Foxworthy if you don't believe us.

I guess different areas do it differently. I don't remember the last time I heard all y'all, or a single person referred to as y'all. Oh well.

Around hear y'all can be dual purpose, and y'alls is pluaral