At least some content in this article is derived from information featured in Harry Potter: Hogwarts Mystery. Spoilers will be present within the article.
Prior to 1989, Bill Weasley's pen-friend from Brazil sent him a hat with this curse on it, because he was upset that Bill could not come to his country on an exchange trip since the Weasley family could not afford it. Bill's brother Charlie was present when Bill was cursed, and thought it was funny.
- Harry Potter and the Goblet of Fire (First mentioned)
- Harry Potter: Hogwarts Mystery (First appearance) (First identified as Ear-Shrivelling Curse)