Official Icky Poo Book What is Icky Poo? Well, according to scientists, it?s an ooey-gooey elastomeric gelatinous compound ? but we like ""Icky Poo"" better. There are 36 icky things to do with it, including Frog Tongue Darts and the ever-exciting Hold It & Scream. The Poo is as Icky as ever.