Drum Bum Share definition Flag A homeless person who lives their lives on the sidewalks, playing drums for money. "Ratta, tat, tat! Can I have some money!" said the Drum Bum. Drum Bum by RollinFever15 March 27, 2009 0 0 Get merch Get the Drum Bum mug. Buy Now — $32.95 See more merch