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1.
1. Acting in such a manner that reflects aspects of both testin', meaning insulting one's technological ability, and unkin', meaning acting high or stupid (with or without the use or drugs), resulting in acting stupid while insulting ones technological skill.

2. Acting so stupid or high that Unkin' would be an understatement - Unkin' to a higher degree.
1. "Looka dat! Yall don't even know how to use that there iphone."

"I don't mean to be rude, but you be tunkin'.

2. "Jimmy is trying to swing from a vine! He's unkin' right now!"

"He's not just unkin', he's tunkin'.
by lilhippomanman June 01, 2009