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Acronym for “Fuck Around And Find Out”. Usually reserved for those people who want to keep pushing a situation until they indeed find out how badly the other person is going to react and open a can of whoop ass on them.
“Hey Dilley! Can I knock your MAGA hat off your head?”

“FAAFO, Mofo!!”

SMACK!!
FAAFO by Time Foolery January 4, 2020
Related Words
FAAFO Faafoi fafo FAAF fafafooey Fagfot Faakornam fafoo Fakafo FANFO
FAAFO/FAFO Means, Fuck around and find out. Typically worn, flown, worn and genuinely just stated by libertarians and Boog Bois to warn and ward off personal attacks or threats regarded to the person using or stating FAAFO/FAFO.
DUMBASS: "Hey libtard what you gonna do if I punch right in the mouth?"

BOOG BOI: "FAAFO!"
FAAFO by Poopertrooper1984 August 5, 2020
Keep on going and FAAFO
FAAFO by Dan&Rho December 29, 2022
Look here, bitch, do not try me or you can FAAFO.

Do you really want to FAAFO?
FAAFO by LingDanc803 April 12, 2023
I just told Jesse to FAAFO
FAAFO by Rebelbitch36 July 23, 2023
A fat gay man. Often times with colored hair.
"God, Damien is such a faafo."

"What'd he do?"

"He's just fat and gay."
Faafo by Lance Nutthrust December 2, 2024