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1.
Nov 22nd Day in Chicago where all the students come home from college for the holidays ; the Biggest College Party night of the year.
Wow im getting so drunk black wednesday that im getting carried to my car.
by domorro November 20, 2006
 
2.
the biggest party night of the year, to many. the night before thanksgiving day.
"i can't wait for black wednesday! we're having a power hour then going bar hopping till we pass out!"
by sosodefxxx November 20, 2007
 
3.
Blackout Wednesday
–noun
the night before Thanksgiving Day, often celebrated with merrymaking. one of the biggest drinking days of the year.
I got so drunk on Black Wednesday that I began making awkward sexual advances.
by Binge Drinker November 16, 2008
 
4.
The day Britain came crashing out of the ERM.

Meaning it was saved form the sinking ship shithole that is the EuroZone.

We were right and Europe was wrong.
HAhahahahah. Lol.
Brit: Thank God for Black Wednesday or we would be even deeper in the shit than the frogs.

German: Yea but we have finally done economically what we couldn't do by military means. LOOOOOOl.
by Pounddriver September 15, 2012
 
5.
January 18th, 2012 - The day the web went dark.
The day that thousands of websites including Google and Wikipedia participated in a protest against bills (SOPA, PIPA) that would give the government way too much power in enforcing copyright. Many sites went totally dark, only displaying a splash page directing clients to sign a petition against the bills.
"I blacked out my avatar to protest against SOPA on Black Wednesday"

-"What's wrong with Wikipedia?! I have to copy it for my research paper!"
-"Dude, it's Black Wednesday, Wikipedia's closed."
by The Apostle Paul January 19, 2012
 
6.
Toughest hardcore punk rock band in existance. Pure rudeboy/skinhead roots. Not to be associated with Pocket Pakis.
"Oh my God. That nazi just got curb stomped by the Black Wednesdays!"
by Andy March 22, 2005