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The realization that the reason an entire conversation has been difficult to follow is that you're talking to an idiot.

Credit to Zach Weiner of the Saturday Morning Breakfast Cereal webcomic (SMBC).
Brenda: Of course, much of Kierkegaard's religious philosophy can be traced back to his being a Taurus.

Alex: Possibly, but...wait, what? You...OHHHHHHHHH!

(Alex has had a dumbpiphany.)
by Tiggar April 26, 2010
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Dumbpiphany: The realization that the reason the entire conversation has been difficult to follow is that you're talking to an idiot
Dumbpiphany first used in a comic on Saturday Morning Breakfast Cereal
by God your a dumbass April 26, 2010
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The realization that the reason the entire conversation has been difficult to follow is because you're talking to an idiot.
"Of course, much of Kierkegaard's Religious philosophy can be traced back to his being a Taurus"
"Possibly, but... wait, what? You... Ohhhhhhhhh, I just had a Dumbpiphany"
by Darkara42 April 26, 2010
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The realization that the reason the entire conversation has been difficult to follow is that you're talking to an idiot, who is further claiming and/or asserting something which is blatantly unfounded or unintelligent; whereas before, you thought it was due to lack of understanding on your part.

Popularized as a joke from SMBC Comics; comes from an amalgam of the words "dumb" and "epiphany."
A "dumbpiphany" in action:

Jack: The reason my relationship with Sarah didn't work was obvious...she's a Gemini and I'm a Leo!

Frank: Well, yea- wait, what?! What about how you cheated on her constantly until she found out?

And so on.
by D-Sack April 26, 2010
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The realization that the reason the entire conversation has been difficult to follow is that you're talking to an idiot.
When she said Kierkegaard was a Taurus I finally had a dumbpiphany--she had no idea what she was talking about.
by RunningFool April 25, 2010
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The realization that the reason the entire conversation has been difficult to follow is that you're talking to an idiot.
-Of course, much of Kierkegaard's religious philosophy can be traced back to his being a Taurus.
-Possibly, but...wait, what? You....OHHHHHHHHH. Just had a total dumbpiphany.

-Walter had a dumbpiphany that discussing flying elephant theory with Jim was fucking retarded.
by Schniggedy Jones April 25, 2010
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The realization that the reason the entire conversation has been difficult to follow is that you're talking to an idiot.
I was having this really heated argument with some woman about athiesm, but I had a dumbpiphany when she suggested that all athiests were possessed by the souls of vicims of religious persecution.
by Dumb ass-hater April 26, 2010
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