AF. informal offensive (also af) written abbreviation for as fuck: used, for example on social media and in text messages, for emphasizing something: He can be dumb AF sometimes. They're rich af.

What does AF mean on the Internet?

AF is an acronym that stands for: As F*ck. When someone writes af (either capitalized or in lowercase letters) on social media or in a text message, it simply translates to as f***. You fill in those asterisk symbols with the rest of the letters.

What does single AF mean?

CityTV. Definition: AF stands for "as fuck." But it is commonly used to describe someone who is super single. So, someone is "single AF."