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 1, 2018
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A person who is so fat they can't see their penis and they have trouble getting around, They still live with their parents after the age of 30, and they don't work.
“Dude, Jordie Jordan is a Fat-faced f*cking-slob. He still lives with his parents.”
by Johnny is a stupid af name October 4, 2021
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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 4, 2021
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