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The best way to learn French is by speaking French, which means in my French class, we will only speak en français.
  —Ms. Yewh  

Ms. Yewh is a French teacher in Jerome Horwitz Elementary School. She first appears in "The Terrifying Perilous Misfortune of the T.P. Mummy".


Ms. Yewh adores French culture, to the point of wanting to visit Paris. Though, she would accept French-speaking Canada as an alternative. Curiously, she becomes smitten with Mr. Ree, who is French-Canadian in origin.


  • She makes a cameo in "The Flustering Mindless Woe of the Flushable Memory Wipes",and "The Harmful Horrors of the Harrowing Hive School".
  • Mr. Krupp and Mr. Ree both have a crush on her.
  • Her name is a pun on the masculine French honorific, "monsieur". It also could be a pun on "Miss You".
  • She is obsessed with France and French stuff