Top Definition
a mix of the words overachieving and chiefin.

Used when someone who is high as shit just wont stop smoking. Usually these ppl are lunchboxes and get very annoying.
-Damn nigga u already faced 3g's of some dank why dont u just relax now...?
-Naw nigga ima do ma thing im still not that high yet (but in reality he is punished)
-O shit well u just overachiefin wasting green
by griff August 31, 2006
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