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A variation on the phrase "what the fuck".
Commonly used by Sho Minamimoto in Square Enix's game The World Ends With You, along with a plethora of other math-related exclamations.
"What the factor?"
"I don't give a digit."
"You factoring hectopascals!"
"So zetta slow!"
by DaisukenojoBito January 12, 2010
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