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The act of severely injuring Hermione Granger from the popular Harry Potter series by JK Rowling to within an inch of her life. This has only been performed in roleplays by a popular roleplaying group known as the Fabulous Five, consisting of members Larka, Mom, Mir, Pink, and Trix, originating from the Neopets board for roleplayers.
Larka: I say we have a Grangercide!
All: Hell yes!
by Larka December 05, 2006
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