[baldeagle]

I use y'all for the second person plural and all y'all to when referring to multiple groups. For example: Team A will go to the left, team B will go to the right and then all y'all will charge the center on my mark.

[yellowapple]

I dig it; it's like "persons" v. "people" v. "peoples".

[mirimir]

Yes, this is how I learned it from imps.