terricotta pie Share definition Flag When someone shits in someone else's mouth and it mixes with their saliva, then rubs it over their torso as a mud covering "Dude, we totally did a terricotta pie in bed last night." terricotta pie by Lola18 April 14, 2015 0 0 Get merch Get the terricotta pie mug. Buy Now — $32.95 See more merch