WILMA stands for Weapon of Inconceivable Loss and Massive Annihilation.
All About WILMAEdit
Weapon of Inconceivable Loss and Massive Annihalation, or WILMA as it is more often called, was created by King Arch to destroy the Heart Crystal so he could take over the queendom of Wonderland. WILMA is created from the silk of the six catterpillar oracles. It dims the Heart Crystal and cause the Imagination of the people to disappear. King Arch had forced Hatter Madigan to weave WILMA in exchange for his daughter, but Hatter Madigan was able to weaken its effect by purposely weaving it incorrectly, as instructed by Queen Alyss Heart.