English

Initialism

NFI

1. (Internet) No **** (freaking) idea; Expresses lack of knowledge on the subject matter
2. No further information; Expresses lack of knowledge on the subject matter
3. (slang) Not **** invited.
   • 2011, Marina Hyde, The Guardian, 23 Apr 2011:

     Speaking of the guest list, though, it is most disappointing to find some of the third tier European princelings unable to hide their bitterness at being NFI.

Anagrams

• f***in', fin