guacapoopie Share definition Flag The mess found in a child's diaper. Oh my God! Honey, bring a pull-up and a bag of tortilla chips! This child has made a TON of quacapoopie! guacapoopie by The_Inventor_of_Shrimp January 23, 2005 0 0 Get merch Get the guacapoopie mug. Buy Now — $32.95 See more merch