The retarded way of saying "as fuck". It is an annoying acronym that mostly ignorant teenagers use. In my opinion, it is stupid AS FUCK. It shouldn't be too hard to type out two words.
Dumb ass: That party last night was bomb af'
Intelligent asshole: What the hell is af?
Art festival in Toronto Ohio being made a big deal over t-shirts and coasters!! It is. Abig deal and the extra publicity is awesome but the mud slinging is ridiculous!
Look at that t-shirt 'Toronto OH AF' must be a great art festival