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1.
Acronym for "Fuck It, It's Friday!"
Neil: "We just lost another sale!"

Bob: "F.I.I.F."
by dougharvey August 28, 2009

Words related to F.I.I.F.

blumpkin friday fuck noodle tgif
 
2.
fuck it, it's friday
FIIF = fuck it, it's friday
by kami's kami November 06, 2009
 
3.
Acronym for Fuck it, it's fine.
Typically used near the end of an exasperating task.
"There!"
"That's gonna fix it?"
"fiif!"
by rogue14 August 15, 2007