I recently heard a parody of “Devil Went Down to Georgia” where Johnny and the Devil are competing to see who has the best marijuana. Does anybody know where I can find the complete lyrics?
Or maybe this one?
It was the one Daizy linked to – but the one BraheSilver linked to is fun too! Thanx! 
I will admit this is not a drug parody of that song but this link
http://www.allhatnocattle.net/3-10-03-charlie-daniels.htm
leads to yet another parody of that song by Chickenhawk Charlie.