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1.
The act of doubling your opponents score throughout the duration of a game or match. Derived from the times where Duke absolutely annihilated their opponents by more than double.

Also see triple duking, or quadruple duking.
Oh shit! I can't believe Duke Duked Georgia Tech... AGAIN. The duking just wont stop...
by Haneef February 14, 2009
 
2.
The act of of putting one's finger up another's ass.
James was caught duking her.
by Im tha bone cracker June 13, 2011
 
3.
Showing intense affiliation for Duke University in Durham, North Carolina. Most notably by painting the entire body royal blue.
Beatrice: Hey Ed, wanna go Duking with me tomorrow night?

Ed: Sure, UNC's playing them, right?

Beatrice: Yup@ We're gonna get our Duke on!

Ed: Sheesh, Kent State ain't got nothing on me.

Beatrice: This is Duke country, baby!
by Dusty's Baby Powder October 08, 2010
 
4.
Showing intense affiliation for Duke University in Durham, North Carolina. Most notably by painting the entire body royal blue.
Beatrice: Hey Ed, wanna go Duking with me tomorrow night?

Ed: Sure, UNC's playing them, right?

Beatrice: Yup@ We're gonna get our Duke on!

Ed: Sheesh, Kent State ain't got nothing on me.

Beatrice: This is Duke country, baby!
by Dusty's Baby Powder October 08, 2010
 
5.
Butt mudding in a zip-lock bag, then stashing it in someones cookiejar.
Tonight we'll be duking it up at Janes party.
by Skippy December 12, 2003
 
6.
Verb, go to the pub. Derived from the Duke of Wellington, a Hotel in New Lambton, Oz.
"Are you duking it tonight?"
"Duking Friday? Dress code: elegantly wasted"
by PG November 13, 2003
 
7.
Assaulting someones little man with your mouth
"wow stop duking and juicing"
by jim500000 December 11, 2007