Short for ‘as fuck’ used with an adjective to demonstrate something or someone as being the maximum level of that description.
by Jo4Bean July 27, 2018
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The acronym stands for 'as fuck.'
That dinner was good AF.

Translation: That dinner was good as fuck.
by Mr McDownage October 10, 2011
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1. (common) Stands for "as fuck".
2. (photographic) Short for autofocus. Sometimes combined with other letters, e.g. when talking about camera-side, AF-S is single autofocus (only done the moment you tell it to) and AF-C is continuous autofocus (done constantly between turning it on and off).
1. Dude, calm down, you got no chill and are angry AF!
2. What are you doing, shooting wildlife shots without an AF lens? Unless the animals are tranquilized, but then there's nothing interesting in that.
by Egg F1337 February 18, 2016
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Typically used as an adverbial or adjectival acronym meaning, "as fuck", AF refers to a higher, more significant version of the verb. When you are "extra" tired, you are tired AF. Might also work with nouns, although grammatically might be disjointed.
by The Review Dude February 25, 2017
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"As foretold." To such a degree it was foreseen in prophesy.
MACHIAVELLI: damn, check her out
NOSTRADAMUS: she thick af
by Himumu December 14, 2016
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Shorthand for "As Fuck." A slang term commonly used by people who are to lazy to write it in the proper manner. Usually found on social media.
Improper: "Bored af"
Proper: "I am bored as fuck."
by 0utat1me November 03, 2015
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