What is the meaning of word foofnik?

"Foofnik" is not a recognized word in any major dictionary or language. It's likely a made-up word, perhaps a:

* Nickname: Someone might use "foofnik" as a playful or affectionate nickname for a person, place, or thing.

* Fictional term: It could be a word from a fictional universe, book, or game.

* Sound effect: It might be a nonsense word used for humorous effect or as a sound effect.

Without more context, it's impossible to determine the true meaning of "foofnik." If you provide more information about where you encountered this word, I might be able to give you a more specific answer.