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Ohio State University's nickname and mascot (brutus the buckeye). Ohio State University (OSU) is known for its great education, sports programs, and very large campus. They set the biggest rivalry game in the nation against that team up north.
Ohio State Buckeyes > Michigan Wolverines

"Dude the Buckeyes dominate Michigan!"
by Wolverine Hater September 01, 2006
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2
Indigenous tree of Ohio "the Buckeye State" whose nut is poisonous. Also the mascot of The Ohio State University. Is a term used for anyone attaching themselves to The Ohio State University's athletics as a fan, student or athlete.
I was born a Buckeye and I will die a Buckeye. And the way the Buckeyes have been playing, I'm gonna die a Buckeye quicker than I thought!
by Suz April 12, 2005
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3
A peanut butter ball covered in rich chocolate. The most amazing cookie ever invented. Also, the Ohio State mascot.
"Those buckeye(s) are amazing!"
by softballkatiie December 15, 2009
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5
refers to the anus, especially when used in the context of anal sex.
After Tyrone and Keisha had anal sex, she told his homies "I tapped her in the buckeye".
by YtownSenator June 13, 2004
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6
A team that gets owned by the Florida Gators, in two major national championships in a row.
"Those buckeyes got fucked up by Florida again."
by Preston Brown April 10, 2007
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