Aunty Sue Share definition Flag when ones aunty has down syndrome and allows you to lift her legs in a sexual act and burn her pubic hair with a lighter. " Omg seb, i cant belive i just gave your Aunt an Aunty Sue " Aunty Sue by johny wilson August 29, 2007 0 0 Get merch Get the Aunty Sue mug. Buy Now — $32.95 See more merch