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England is represented by the flag of St. George
A red cross on a white ground

Scotland is represented by the flag of St. Andrew
a diagonal white cross on a blue background.

Ireland is represented by the flag of St. Patrick
a diagonal red cross on a white background

The Welsh dragon does not appear on the flag because when the first Union Flag was created in 1606, Wales was already united with England
Therefore Wales is represented by the English Flag
The "red Diagonal lines" are not from wales. Thats thought up ignorance by Gumba Gumba
by Kung-Fu Jesus. September 13, 2004
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Commonly used but incorrect name for the Union Flag of the United Kingdom.

It should only be called the Union Jack when being flown at sea.

When flying from a flagpole on land "Union Flag"

When flying from part of a boat at sea "Union Jack"
Yank tourist "Ooooh look, the Union Jack".

Infinitely more intelligent Brit "Pillock, it's called the Union Flag".
by Lord Leverhulme December 07, 2006
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1. The British flag.
2. Another name for masturbating(jacking off) in a group, such as in a circle jerk.
After helping to win the Revolutionary War, the 5 gay American soldiers celebrated by having a union jack on the Union Jack.

Mark H. Active participant on UrbanDictionary since February 2004.
by Mark H June 03, 2006
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A derogatory nickname for people obsessed with all things british, including but not limited to Doctor Who, The Royal Wedding and The Mighty Boosh.
Bill: "Man, Ian sure has been obsessed with Sherlock Holmes"

Ray: "Yeah, he's such a Union Jack"
by CINNAMINBUNNS October 11, 2011
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In England, evidence that England continues to consider itself the ruler of, rather than a member of a union with, Scotland and the North of Ireland, never mind Wales (which is not represented at all). In Scotland, evidence of a persistent insult (the English St. George Cross is superimposed on the Scottish St. Andrews Cross). In the Republic of Ireland, an astonishing testimony to English arrogance, given the insistence of the English on not changing the flag after 1922 to reflect the fact that Ireland threw the English out.
"The Union Jack shows that England would still like to conquer the world"
by diddley who June 26, 2007
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