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Theory Theory no Mi (Noun) is a phrase sometimes used among One Piece fans towards the other delusional fans in situations in which the idiotic fans construct the most ludicrous and farfetched fan theories you had the displeasure of listening to. These theories can range from being somewhat comical to completely confusing or frustrating, depending on how much stupidity you can stomach. The phrase was named after the Devil Fruits, a fictional fruit in the series that grants the eater a supernatural power, such as the Gura Gura no Mi (Tremor-Tremor Fruit) These fan theories perhaps are thought up due to the expansive lore of One Piece.
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