Here's a breakdown:
* Lutin: This word refers to a type of mischievous sprite or goblin in French folklore.
* Noir: This word means "black" in French.
Therefore, "Lutin noir" often refers to a malevolent or sinister goblin in stories or mythology. It might also be used metaphorically to describe someone who is mischievous, cunning, or even evil.
It's important to note that the term "Lutin noir" isn't a commonly used phrase like "black cat" or "black sheep." Its usage is more likely found in specific contexts, like folklore or fantasy literature.