* Misspelling: Perhaps you meant a word like "finkle" or "finkle"
* Slang term: Some words are very specific to certain groups or regions.
* Fictional word: It's possible the word is from a book, movie, or TV show.
Can you provide more context?
* Where did you encounter the word "finkle"?
* What was the surrounding text or conversation?
Knowing more about the context will help me figure out what you're asking!