when a black person says it, its ghetto.
when a white person says it, its country.

"You" in its plural form. Originated in the south but has equivalent counterparts in other languages such as German.
For instance, in German one might say :
"Wie geht's mit ihr?"
or in English:
"How's it going with y'all?"
In German Ihr is an official part of speech...something to consider! People who denouce the term "Y'all" are just hatin' on the more enlightened!
Oh yeah, and "Ya'll" is completely wrong. NEVER use it.

the extra plural form of y'all. Refers to at least ten people.

A second-person pronoun that, when in the South, is incredibly common. It makes much more sense than "You Guys" and other counterparts, for it takes only one syllable and, therefore, less breath. Can mean one person or several people, but usually refers to the latter. Sounds utterly ridiculous when said with an accent other than Southern or a plain American, all around accent. Oft times mocked by the rest of the country, while we southerners laugh at their wanting of "a grit" and their accents.

When having a cell phone conversation the person on the other end of the call says y'all (alternatively spelled as yall) every few words in a desperate attempt to sound southern when in actuality they are from somewhere like New York. For people who say y'all naturally (i.e. real southerners), this is a painful conversation.

It is important to note that this particular "y'all" is obviously fake and can be distinguished by such characteristics as a noticeable pause between the "y" and the "all" because the poser cannot even grasp the basic pronunciation of the word, and by their grammatically incorrect use of it to refer to only one person, when in fact y'all is one of the contracted forms of the second person plural "you all."

Supposed to be a slang word for "you all", of which it is now used by 13-16 year old angsty white trash teens and sluts on the Internet. Originally used by somewhat more smarter and logical people that originated from the South called "Southerners"

The incorrect plural form of y'all. The correct plural version is "all y'all"