2-Flush Dump Share definition Flag A defication of such magnitude, it requires flushing the toilet twice to get the entire product down the toilet. It should be noted that all men quietly celebrate taking a 2-Flush Dump. 2-Flush Dump by 2Old4This July 25, 2004 0 0 Get merch Get the 2-Flush Dump mug. Buy Now — $32.95 See more merch