Top definition
When someone makes a huge fuckin mistake, fucks up badly

Fat failure
“Bro my car ran out of gas
“Really bro”
“Yeah”
Oof, that’s a fat f”

“Bro have you seen his new girlfriend”
Yeah dude she’s fuckin ugly”
“That’s a fat f”
by Iceandjayxxsick November 01, 2018
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Jun 17 Word of the Day
Someone who is possessed by clout chasing. The original human is now gone and a demonic entity that feeds on clout is all that is left. An empty shell with no control of their actions, forced to blindly react to situations they think will bring them attention.
Soundcloud Rapper: Check out this link, realist in the game!
Social media feminist: Women have a voice!!!! #Brave
Normal Human: SHUT UP CLOUT DEMONS!!!
by DebSlave June 03, 2018
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2
An acronym meaning Flipping Across the floor. Used to express extreme laughter while chatting. Only to be used in situations that are actually too funny for a basic lol or rofl.

Other Uses:
Fatf-copter
Fatf-jet
Person #1 Today i fell down in front of the entire school and my pants ripped, i was so embarrassed. =

Person #2 Fatf !!
by -KILLALL- December 02, 2009
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3
A form of reaction to a loss. The term originates from the “Press F To Pay Respects”, which is turned into the slang of someone saying “F”
“Dude, someone hacked my discord sever. Bruh, Fat F.”
by Multiplayr111 June 03, 2021
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