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When someone is astounded by an inconspicuously profound statement, fact, or idea. When you blow someone's mind. See also: auto-epiphellatio.
My friend had an epiphellatio when I told him toothpaste can be used to remove stains from headlights, carpets, and leather.

My roommate wanted to know a way to easily make a grilled cheese sandwich. When I told him he could just turn the toaster sideways, he had an epiphellatio.
by reallifecartoon September 25, 2015
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