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A phrase used to describe a snowstorm when Snowpocalypse and Snowmaggedon aren't sufficient. A Winteragnarok is often characterized by heavy amounts of ice hidden under several feet of snow.

Even Jesus Christ wouldn't try to drive in Winteragnarok.
Rufus, put the donkey back in the garage. There's no way we're going out in this Winteragnarok. The ressurrection can wait.
by Stranger-Danger February 01, 2011
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