People who are born and/or raised in the Northeast or the Midwest, with those people possessing qualities of a Northerner.

Yankees are usually found in and are from the following states: Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Maryland, Pennsylvania, Ohio, Michigan, Indiana, Kentucky, Illinois, Wisconsin, Minnesota, Iowa, and Missouri.
The Mason-Dixon Line plays a very slight role in determining who is and isn't a Yankee, because the Mason-Dixon Line was an imaginary border that was designed to legally set the boundaries of the states allowing slavery, and of the non-slavery states; not determining North and South.
The states that contain the most real yankees are all of the New England states, Pennsylvania, Ohio, and New York.
I am a devout, true-to-heart Yankee, and damn proud of it.
by The Kentucky Yankee March 18, 2005
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The most egotistical group of athletes to ever hit the major leagues. The Yankees suck not because the play badly, but because they are not a team they are a business.
A Yankee fan's contribution to baseball chat rooms is limited to "Red Sox suck" and "1918."

www.yanks-suck.com
by Raych September 20, 2004
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It is a well known fact that the Yankees eat babies, rape young unwed mothers and are the number one cause of the decay of Western civilization.
by Poop in your hat January 21, 2004
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The most egotistical group of athletes to ever hit the major leagues. They are the first team to CHOKE on a 3 - 0 in the 2004 ALCS. They also suffered the biggest shut out in MLB history, losing 22-0 to Toronto. The Yankees Suck.
by Raych November 19, 2004
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The greatest professional sporting team in the history of the known world. Winner of 26 World Series championship and 39 American league pennants. Members include such legends as babe Ruth, Mickey Mantle, Lou Gherig, Joe DiMaggio, Roger Maris, Yogi Bera, Whitey Ford, Reggie Jackson, Don Mattingly, and Wade Boggs. Yankee Stadium, also known as “The House That Ruth Built" is situated in the Bronx in the greatest city in the world: New York. The Yankees' chief rival is the Boston Red Sox, whom after winning one championship in 86 years, have suddenly come under the delusion that they are a greater team than the Yankees. 1 in 86 is pathetic and no cause for boasting in such a sad city as Beantown.In short, G-d created the New York Yankees on the Sixth day at twilight.
NYY Fan: What's the greatest baseball team in the world?
Random Person: The <Insert Random Team Here>!
NYY Fan: Wrong, Fucktard! It's the New York Yankees.
by J?K September 1, 2005
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The most historic and awesome team in American history. The New York Yankees are far more than just a baseball team. They are an institution. Legends such as Babe Ruth, Mickey Mantle, Lou Gehrig, Joe Dimaggio, and Reggie Jackson were all Yankees. They have won the world Series 26 times.

Also known as the Bronx Bombers.
The New York Yankees are the ultimate sports franchise.
by woots August 16, 2006
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Team that buys every player in major league baseball, and then wonders why they can't win a World Series every year.
Even though the Yankees payroll was 180 million, compared to 100 million of the Red Sox, they barely made it past Boston in 11 innings of Game 7 with some timely BLOOP b.s. hits.
by Brian October 20, 2003
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