What were they really singing about?

those songs from the past (or even today)—pretty memorable stuff. but as you got older and wiser, you were taken aback about what the song was really about. what song do you remember or liked as a kid that turned out to be about those taboo things like sex, er uh, relaxing prescriptions and good times under the influence?

what is the title and subliminal message of “that” song?”