pinky poop Share definition Flag A word to say to annoy your sibling. This will definitley make you laugh, don't know why though. "Hey Jessa, pinky poop" "Pinky poop your mouth bitch now shut up" pinky poop by J Slasher April 5, 2017 0 0 Get merch Get the pinky poop mug. Buy Now — $32.95 See more merch