Internet slang initialism standing for 'as fuck', used as an intensifier attached to adjectives or other descriptors to mean 'extremely' or 'to the greatest possible degree'. Typically written in lowercase (af) in informal digital communication. Versatile and high-frequency across social media platforms, texting, and online communities. The phrasing is direct and emphatic: 'tired af', 'cute af', 'hungry af'. The vulgarity is mild enough that it's widely used even in semi-public contexts, and the lowercase form softens the explicit origin.
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Viral internet speak — memes, ratios, main-character moments, and the algospeak of every platform from Twitter to Reddit to TikTok comment sections.
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Internet slang abbreviation for as fuck, used as an intensifier appended to adjectives — tired af, hungry af, done af. Extremely common across social media, texting, and casual online writing. Amplifies the preceding adjective to its maximum register. The abbreviation allows the emphasis without spelling out the full expletive, making it versatile across different audiences and platforms. The usage spread from social media platforms and firmly embedded itself in spoken conversation, particularly among younger demographics.
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, also af, a/f.
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