I think it's about how people who have questionable lifestyles, such as those of drug use or crime, don't see their actions the way everyone else does. While we see them using drugs, we would "call it a spliff", but to them, it "smells like chocolate". People never perceive their own actions to be as bad as they would perceive them to be if they saw someone else doing it, and I think that might be what this song is about.
I think it's about how people who have questionable lifestyles, such as those of drug use or crime, don't see their actions the way everyone else does. While we see them using drugs, we would "call it a spliff", but to them, it "smells like chocolate". People never perceive their own actions to be as bad as they would perceive them to be if they saw someone else doing it, and I think that might be what this song is about.