Short for " Drinking Day " (as in liquor) so you dont make it obvious by saying the whole phrase. Used as a way to keep it on the lowkey!
Hey homie, so we gone have a D-Day on friday? ..Fash0
by APX February 18, 2008
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canada didn't do shit for d-day
jordan doesn't know shit about d-day
by john kerry is a good dad January 10, 2005
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The day when the Allies finally did something to help the Russians defeat the Nazi Germany in the WWII by landing a descent operation in Normandy, France. It wasn't that necessary at the moment, and the main reason for this operation was for America to have some piff-puff and to get itself a piece of european cake after the war was over.
Yo, man! This is not good! All the fame will be left for those unwashed Russkies! America wants some D-day, too! (Harry S. Truman)
by Fulbert June 11, 2007
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It actually means Day day in army talk, like h-hour. No joke.
D-day was the day the canadians,americans,and british defeated the Nazis in WWII
by anklesarelikelittlehats June 2, 2006
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an operation which wasent nessesary, if the allies hadent invaded there the germans still would have been defeated, d-day was not to save france from the germans, but to save france from the russians. bye june 1944, the germans had already lost at kursk nearly year before d-day, which was the turning point in the war i nthe east, by late 1945 if the allies hadent invaded, france would have msot likly been part of the soviet union.
the allies were thinking about more than the germans...
by eastern person January 20, 2005
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Hooters who attacked the Germans to liberate the French!
You having a d day guys
by Ankido September 12, 2006
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Common word for the first day of Operation Overlord, the allied invasion of Nazi occupied Europe (6 June, 1944). Can be associated with such heroes as the 501st Airborne Division and Lt. Richard Winters.
Callum: what are you most interested in, concerning the events of WWII?

George: Has to be D-Day mate, the invasion of Europe was such a pivotal moment in said war.
by Chine February 18, 2016
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