Hoobajoob Share definition Flag Jesus. Haven't y'all seen South Park? A Hoobajoob is a random, usually large, object. Chef: My lord, the vistors kidnapped Cartman, and stuck a big metal Hoobajoob up his butt! Hoobajoob by Leiko October 3, 2004 0 0 Get merch Get the Hoobajoob mug. Buy Now — $32.95 See more merch