Definition of "AF"

AF

/eɪ̯ˈɛf/

noun
countable and uncountable, plural AFs
1. Initialism of air force.
2. Initialism of alternative fact.
3. Initialism of atrial fibrillation or auricular fibrillation.
4. Initialism of autofocus.
5. Initialism of adult female.
6. Initialism of auditory feedback.
7. (poker) Initialism of aggression factor.
adjective
not comparable
1. Initialism of antiferromagnetic.
adverb
not comparable
1. (Internet slang, vulgar) Initialism of as fuck.
  Quotations
  Beowulf’s got plenty of admirers, so the romance is totally on point too. Trust me, this story is the lit AF, and you won’t wanna miss it.
  2023 May 16, Ella Creamer, quoting ChatGPT, “‘Beowulf is lit AF’ – could ChatGPT really write good book blurbs?”, in The Guardian‎