Poop Explosion Share definition Flag When a newborn needs his/her diaper changed and the diaper is overflowing. "OMG I changed the baby's diaper and poop explosion is running down my arm. the wall, the couch...wake up dear, its on your face." Poop Explosion by Ziggy0751 May 14, 2015 0 0 Get merch Get the Poop Explosion mug. Buy Now — $32.95 See more merch