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A moment of time in which a person has a large amount of stupidity and forgets something trivial or important.
1. "Dude, you have to see this!" *shows* *moments later* "Dude, you have to see this!"

2. "I think you're the only person in the world not to use Trishula's effect when you summon it." "Yeah, you just had a Brandon Moment."
by ColdKlaus August 30, 2011
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