a) Aunty I'd like to fuck
b) Amma I'd like to fuck
A term used by young people in the diasporic South Asian community in reference to an older woman who is sexually attractive. "Aunty" is a generic title for any woman that is at least half a generation older. "Amma" is the Hindi and Bengali word for "mother". The term AILF was used in a muckittees.com t-shirt aimed at South Asian youth.
Comes from the common usage of the word MILF. This was then modified by the new wave of Sixth Formers as the mysterious cult known as the Brotherhood of Fist adopted it as their slogan. Means Ass I'd Like to Fist.