jumbledump Share definition Flag 1. A break-up that makes no sense to the rejectee2. A very jumbled-up poop Joe was the receiver of a jumbledump, so he went home and contemplated it while taking a jumbledump jumbledump by trexosedell August 8, 2011 0 0 Get merch Get the jumbledump mug. Buy Now — $32.95 See more merch