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For the character who went on to adopt this name in the book series, see Professor Poopypants.

Tippy Tinkletrousers is a character who does not physicaly appear in the series. He is the maternal grandfather of Professor Poopypants. He is mentioned at the end of Captain Underpants And The Perilous Plot of Professor Poopypants in Poopypants' letter to George and Harold announcing his name change.

Trivia[]

  • He is the second unseen character in the book series, first being Harold's Father.
  • He, his grandson, and his daughter are the only known members in the Poopypants/Tinkletrousers family tree.
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