BillaBum Share definition Flag A rare animal only found in Aunt Jemima Syrop. Be carefull, cause the billabum tends to spit in the syrop. Oh my lord! Ive found a billabum in my syrup! BillaBum by Pippen December 6, 2003 0 0 Get merch Get the BillaBum mug. Buy Now — $32.95 See more merch