I've read "Dave Barry's Book of Bad Songs" where he talks about all this weird stuff (I highly recommend it).
I've listened to ministers and others rail on about "drug promoting" rock lyrics etc. I always figured they were right some of the time and wrong some too.
I always also figured a lot of lyrics don't really mean anything, just like a lot of poetry. Back in high school I hated having to figure out what some poet or writer "really meant". How many teachers, profs, and students wasted countless hrs trying to decipher nonsense? ...or at least completely distorting what the writer meant. To me, that's the same as the art community finding "genius" in abstract paintings drawn by elephants or monkeys (I always loved those stories). Any English or art teachers care to comment?
When I was a teen I owned the only decent stereo in our home. My Dad used to ask me to play an LP of old Jimmie Rodgers recordings from his youth back in the 1920's. Dad would lie down on my bed, close his eyes, and disappear into memories for a half hr. Anyway, I ran across a web site a couple of years ago that "explained" the (very dirty) meaning of the lyrics to one of those songs Dad listened to over and over. Of course I had never "heard" that in the lyrics, and I really doubt Dad ever did. Maybe good old Jimmie did mean them that way (he apparently used a number of time-worn R&B euphemisms) but if so, 99% of his listeners didn't get it. Or maybe we are trashing Jimmie's memory by suggesting this... who knows?