af

Means 'as fuck' and is used to clarify things. You can also use it as the word 'very' or 'really'. Mostly used online or in text messages.
1) I'm really tired; I'm tired af
2) I ship them so hard, I'm (shipname) af
3) He won't stop poking me, he's annoying af.
by BruhBiatchh March 11, 2015
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AFS

American Field Service (AFS) is the best worldwide exchange organization. Students can travel all over the world, meet people from other countries and learn new cultures. After their foreign exchange year they still can voluntary work at AFS. The organization is also known for their energizers.
People from AFS are always crazy, awesome, friendly, openminded, wonderful,... people.

AFS is one big family.
Student1: Hey, have you heard of AFS?
Student2: Yeah, AFS is awesome! And afser are wonderful people. I've heard they're doing some crazy energizers.
Student1: I want to go on an exchange with AFS. The organization is the best one worldwide.
Student2: Same here. The foreign exchange year will be the best year of my life.
by lola18 January 06, 2014
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AFS

So Korin over at Paddy’s Pub has total AFS, it’s unbelievable!
by BrggZ January 13, 2019
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Af

Af stands for “as fuck”.
Wow he’s cute af!

That test was hard af!
by 💞💖🤪 December 01, 2018
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AF

"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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Af

We already had OMG, LOL, and WTF, but 2014 brought about a new acronym that was popularized thanks to texting and online chatting. Abbreviating "as fuck" as AF has been happening for a while, but it was never actually spoken aloud as much as 2014. Some pronounce it "A Eff" and others simply "af."
"I'm hungry as fuck" =Old word
"I'm hungry AF" = New word
by John abuzi September 26, 2015
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Af

My **** is big af
by Wee Wee 😂😂😂 May 31, 2019
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