Pinocchio Pants Share definition Flag A random blood rush to one's penis causing a spontaneous erection. Often causes embarrassment and laughter. "Dude, I'm so hungry""Man same here, I can...aw man, I'm getting some Pinocchio Pants...""..." Pinocchio Pants by L0stf0rever June 7, 2011 0 0 Get merch Get the Pinocchio Pants mug. Buy Now — $32.95 See more merch