I'm sure I heard this first on the Doctor Demento show. Holly Tannen is very good. "Rime of the Ancient Matriarch" is very clever and "I Wanna Be a Bonobo" has great appeal to my sense of humor.
Well. I don't do drugs unless my doctor says I have to. It's not that I disapprove of them, they just don't do much for me. Even booze. When I quit, I think it was with good reason, but I could really go for a beer right now. Pot never did anything for me. When I tried it, it just made me feel slow and heavy - not a particularly pleasant sensation. Better than being in pain maybe, but not an experience I really care to repeat. But a lot of people like it and I think they should be allowed to pursue it and the government should not be getting in the way of legitimate medical research.
Anyway, the song is about a particular relationship not drugs. It's worth thinking about why you keep up long friendships and what people get out of them. The song makes it pretty funny.