Auntie Mommy Share definition Flag When your skank as sister and ex baby daddy get together and she acts like the mother of your child. Auntie Mommy is coming to pick up pills. Auntie Mommy by Missknowitall6969 November 26, 2016 0 0 Get merch Get the Auntie Mommy mug. Buy Now — $32.95 See more merch