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1.
(noun) A person, especially a member of a political party or a military organization, who is hardcore, who endures during hard times. The opposite of "summer soldier", a phrase used by Thomas Paine to denote (and mock) men who signed up for the Revolutionary War and then quit when the going got tough.
"Most of that outfit quit, but the winter soldiers are still hanging on."
by Anarcissie May 21, 2008