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 August 17, 2015
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When you blow your own mind.
I performed auto-epiphellatio when I figured out I could make grilled cheese by turning the toaster sideways.

When I came up with the word epiphellatio today, I had an auto-epiphellatio.
by reallifecartoon July 22, 2015
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