Top Definition
In the realm of Pokemon, there are those who battle competitively. Memorizing Pokemon base stats and comparing them against others to determine results without past experience is known as Theorymon.
Battler #1: Salamence would be able to switch in, Dragon Dance and sweep your entire team

Battler #2: Pfft, that's all Theorymon, you don't know that for sure.
by Videogamefool August 14, 2010
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