Lyric discussion by Czechxican 

Cover art for Pepper lyrics by Butthole Surfers

I think this song, like all great art has multiple interpretations that all reinforce the same basic conclusion.

I think that heroin use is a theme in the song, but it is used to demonstrate a broader point. I believe that the lines "they were all in love with dying, they were drinking from a fountain, that was pouring like an avalanche coming down the mountain" is a metaphor for all activities that people engage in to excess. Heroin, casual sex, fighting, drinking, and driving when done in a reckless manner are all enjoyable but inevitably lead to tragedy. One cannot really "drink" something like an avalanche, and here the point is made that while these people choose their actions, they cannot control the outcome or what will ultimately happen.

@Czechxican You're right, every one of the things listed in excess eventually leads to death. "Heroin, casual sex, fighting, drinking, and driving when done in a reckless manner are all enjoyable but inevitably lead to tragedy."

I can taste you on my lips and smell you in my clothes (as stated above in another comment, this is the wreak of sugar that an addict dabbling in heroin or opiates) Cinnamon and sugary and softly spoken lies -Drug abuse leads to addiction and eventually to an overdose. I like to think that softly spoken lies are the one of an addict...