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1.
to mean you are highly intelligent with a pen and a pad. ;

Orgin: Hip-Hop 2000's Philly

Ink Geek is derived as in the sense of seeing someone intelligent and is attracting people with his or her lyrics. but is used to refer to lryics that are highly approved by someone.
yo! them lines are dope, you are a Ink Geek when it comes to this music."
by jony depth January 30, 2012