Sounds disgusting to me.

You don't make green dragon with resin from your pipes. You make it using buds or trims, so it the drink tastes good.

You use a a very high proof alcohol like Iso, to clean your pipes, then you evaporate the alcohol leaving you with a gooey dark oil, that you smoke.

Drinking a resin dragon sounds awful. You made a brown dragon, as you used nothing green in there at all.

But whatever floats your boat.