1. Figurative Meaning:
* A lasting mark of love: This could be a metaphorical stain left on someone's life, memories, or belongings by a strong love. It could be a positive mark, like the scent of a loved one's perfume on a shirt, or a negative one, like the emotional scars of a broken heart.
* A stain caused by a love act: This could refer to a stain on clothing or bedding caused by passionate activities. It could be a playful way of referring to lovemaking, or it could be a more serious and embarrassing situation.
2. Literary/Artistic Context:
* A specific term within a work: It's possible that "love stain" is a unique phrase used in a particular piece of writing or art. Its meaning would be specific to that context.
3. Misinterpretation or Misspelling:
* A misinterpretation of a different phrase: It's possible that "love stain" is a misunderstanding of a similar-sounding phrase, like "love stain" or "love strain."
* A misspelling: The phrase could be a misspelling of another word or phrase entirely.
To get a clearer understanding of the intended meaning, you need more context.
For example, where did you see or hear the phrase? What was the speaker or writer trying to convey?
Please provide more information, and I can help you determine the specific meaning.