[ROCKLOBSTER]

I know enough not to use ‘y’all’ in the singular.

"Y'all" IS singular.

"All-y'all" is plural. Everyone knows that.

[Fantasywriter]

The contraction of ‘you all’ is singular?

Born and raised in the South, and you are wrong.

Btw, the only time I heard ‘all y’all’ was in the Broadway musical, the Wiz. Doubt it was written by Southerners.