stands for fan of fans. they are people who overshadow any other fans with annoying and obsessive comments to a figure or to their idols which often kills the chat/discussion/hype. quite similar to worshipping, but way more obnoxious and intrusive
"Wow! He's impressive."
"What an spectacular performance!"
"Yeah, he's pretty cool. Big fan."
"OMGOMGOMG!!! I LOVE HIM! I WANNA MARRY HIM! I WANNA KISS HIM ON THE LIPS!"
"I WANT TO HAVE SEX WITH HIM RIGHT NOW!!!!!! AAAAAAAAAAAA!~"
"..."
"....."
"Well, that killed it. What a fof."
by rjyren June 4, 2021
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Full of Fail.
A way to describe something that is so Epic fail.
Amo - Lawl Zath check out my new spec it is the win roflmao!!1!11one!!11!
Zath - no it's not it's FoF

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Specialized - SAVE BRITNEY!
Kirel- Britney Spears is so FoF.
by Zathy January 1, 2008
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Prounounced abbreviation for:
Fuck Off, Fucker
Definition: Dismissive statement.
"Hey, can I borrow $5?"
"FOF"
----
"Actually, you didn't say that. You said this..."
"FOF"
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"Look you bleepitybleep yadda yadda"
"FOF"
by DaRana May 31, 2003
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F.O.F. stands for flock of flies
it is a nickname given to the most smelly of the smelly, most likly someone fat with a fuda / fupa
there was a flock of flies following nate around at practice so everyone calls him fof.
by thebigmansgoingdown October 21, 2006
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Closet Brexit voters will not admit to voting to leave the EU, for #fofs
by JakobRaySmugg October 4, 2018
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Beez: Yo bruh that shit is whack af.

Wem: FOF
by LiMiTs May 1, 2019
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