Body oil was a substance of oily consistency intended to be applied to a humanoid or carbon-based lifeform's body for either curative or pleasurable intent.
History and specifics[]
The mate of the Cardassian Yakkan obtained a type of body oil extracted from arboreal slugs native to Malvestia IV. She looked forward to rubbing this oil into Yakkan's scales. (DS9 novel: Devil in the Sky)