farty allanah Share definition Flag A girl that farts like a pumpy bum machine person 1: Who's That? Person2: Oh thats farty allanah Person 1: Why is she called that? Person 2: because shes a pumpy bum machine farty allanah by Bum girl November 9, 2017 0 0 Get merch Get the farty allanah mug. Buy Now — $32.95 See more merch