1. This is aderivative of the more commonly used M.I.L.F. but relates more to the eastern hemisphere. A.I.L.F. stands for Auntie I'd Like to F*** and usually relates to a hot woman who could be your relative because your community is so closely linked to another.
2. A friend of your mother's who is Indian or Paki, and out of respect you call them "auntie" but the minute your mother isn't looking, you make advances on your "auntie"