1 definition by BGernat

Top Definition
Traffic in the Washington DC Metro area caused by any amount of snow, specifically thundersnow
I spent 13 hours trapped on the GW parkway because of this thundersnow traffuck!

Thundersnow traffic caused 100s of cars to be abandoned by their owners this past week.
#thundersnow #traffic #dc #jam #snow
by BGernat January 28, 2011
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