The subject of this article originates from non-canonical sources. To find out about what is considered "canon" see LOTR:Canon.
Wicked, Wild, and Wrath were the names of three Giant Spiders, claiming to be the self-titled queens of the spiders of Mirkwood (and most likely direct descendants of Shelob or Ungoliant). The Hobbit Bilbo Baggins slew them when they tried to attack him after he freed his Dwarven allies from their webs.
Wicked, Wild, and Wrath are not in any of the books or movies; they were invented for The Hobbit video game.