Source : Webster's Revised Unabridged Dictionary (1913)

Auntie \Aunt"ie\, Aunty \Aunt"y\, n.
   A familiar name for an aunt. In the southern United States a
   familiar term applied to aged negro women.

Source : WordNet®

auntie
     n : the sister of your father or mother; the wife of your uncle
         [syn: {aunt}, {aunty}] [ant: {uncle}]