Top Definition
Is to do some thing only a junkie would do. Often crazy drawn out tasks to get high. This inclueds any task to obtain money or drugs, Such as stealing or lookin for some one to get high with.
Cody's was on a god dam junkie mission,he walked 26 miles to get a bag of weed last night.

Josh: Wheres Your sister?
Jeff: Probably on a junkie mission.
by Mtownjw August 16, 2009

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