A southern corruption of the term, "yous guys." Most
people who use the expression "y'all" are either rednecks or African-Americans. However, it is more often heard from rednecks. The expression becomes even more ignorant when it is changed to "all y'alls."
Y'all is not a
real word. It is formed by dropping the ou from "you all." Even worse, "y'all is often used with a double negative, as described in the example below. This word is the epitome of
ignorance.