Top Definition
Similar to a "lightbulb moment", a brain egg is when you have an insight--preferably if you aren't trying for insight.
Jimmy Jim Jon: Dude!
Bocefus: What dude, what is it?
Jimmy Jim Jon: I just had a brain egg dude, we don't need explosives we'll just use.....
by theultimatedestroyer September 12, 2010

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