CF The CF is from the so-called NATO Phonetic Alphabet.

CF

1. rude slang An abbreviation for "clusterfuck," meaning a chaotic situation rife with problems. Oh, the dinner party was a total CF—the roast was dry, the toilet overflowed, and everyone argued about politics.
2. vulgar slang An abbreviation for "clusterfuck," meaning a group sexual encounter. No, I've never taken part in a CF—have you?

CF The CF is from the so-called NATO Phonetic Alphabet.

verb
See also: Cf, NATO, phonetic