completely and utterly useless phrase people up north use in the place of ya'll. it means you guys, but they just have to be stupid and (besides not using the much simpler phrase ya'll) add -es to the phrase "you guys". As I have said many times with great wisdomosity, ya'll is much simplier to say.
A grammatically incorrect attempt at constructing the possessive form of "you guys." Fairly common in the upper Midwest but rarely heard in the South, where various forms of "y'all" are at least easier on the ears.