Yep, there's several different interpretations of what the "Back Door" lyrics were all about, but Clarence seemed to have an affinity for sexual innuendo lyrics - "Money And Women", "Looking For A Fox", "Getting The Bills (But No Merchandise)", "Strokin'" etc, etc.
Either way, I'm not gonna get into a discussion with the mother-in-law on Christmas Day about the lyrics to "Back Door Santa" thank you very much!
Ian D