A packie joint is when you don't have much weed left, barely enough for a joint and you're sharing it, similar to a prison rollie Commonly used amongst stoners in the North West of the UK.
Example 1:
Ryan: "Hey lad have any merch there?"

Dave: "Yeah lad but not much, it's like a packie joint"

Example 2:
Chris: "Lad I got scummed there, I got a 10s and it wasn't even two reefers lad, it was like a fattie and a little packie joint for when I go to bed"
by FlappedJoint September 5, 2012
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