small specks of poo that fall down on to the toilet seat while wiping. Particularly visible on white toilet seats (but carpets do an excellent job of concealing them). Usually observed among those with hairy cracks and high-fibre diets.
Son: Dad, did Uncle Jim come to visit again?
Father: Yes, why do you ask?
Son: I saw some poo-flakes on the toilet seat.
The power of pwn contained in cereal. It is 99% testoserone and 1% of corn syrup goodness. Having eaten this cereal, one may have a tendancy to cause extreme pwnage. This is said to be a good substitute for steroids. Pwnflakes is in no way associated with 1337 Cereal.