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1.
The act of embodying all aspects of things gangsta.
Coleman: "Yo, you can't be depressed anymore, you're rich."

Hamm: "Nah baby, I'm straight dinkin!"
by Thunder Jones April 12, 2010
 
2.
An affectionate term for either a friend or acquaintance who then in turn refers to you as Koch in their reply.

see also "Koch"
"What up dinkins!?"
"Pass that shit over here dinkins!"
by Czar Mikhail April 17, 2003