"Oh, go flush yourself down a pee-pee-hole, you toilet paper covered doody head!"
-- Potty Mouth
Potty Mouth is a toilet-headed villain. He was first seen at Mr. Boss's assembly in Operation: M.O.V.I.E. but only officially appeared in Operation: A.W.A.R.D.S. where he won the Villain's Choice Award for "Best Toilet-Based villain" over the Toilenator. He also appears briefly in Operation: I.N.T.E.R.V.I.E.W.S. with Knightbrace, when they try to steal the Queen Tie's larva and were soon eaten by the Queen herself.
His catchphrase is "You're poopin' right!".
- "Potty Mouth" is a term for a person who swears excessively, which is reflected in his character when he responds "Ahh, go flush yourself down a peepee-hole, you toilet paper covered doodyhead!" before being stopped by Robin Food when the Toilenator objected to his receiving the award.
- His neck appears to have tannish skin, the only part of him that isn't covered by his costume.
- In Operation: M.O.V.I.E. his eyes appeared to be red instead of the light-blue color in the later episodes.