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F.i.f.u

1. F.i.fu. (acronym) for Fatigue Induced Fuck-Up.

or
2. Fi.f.u. (acronym) for Fatigue Induced Foul-Up.

(censored version).

3. When one is so tired the easiest tasks are easily errored.

(Sometimes while the person doing the F.i.f.u is unaware

of it until after the fact).
1. (can be used as a verb.) I was so tired I Fi.fu.'ed, and

got off the bus at the wrong stop.

2. I was so tired I F.i.f.u'ed and, tripped going down the

stairs.

3. There was a complete F.i.f.u. on your T.P.S. report

Jonson, you obviously need some sleep.

4. Well todays' paper-work has been a total Fi.f.u.
by Philly McWilly May 26, 2012
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F.I.I.F.

Neil: "We just lost another sale!"

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

F.I.L.F.

"father I'd like to f*ck";
Term of endearmemt used by gay men and straight women towards older adult males they find sexually attractive;
A category used in the gay porn industry.
"Damn, Eric Estrada is one hot brown F.I.L.F.!"
by rtis130 July 7, 2007
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F.I.N.E.

"There's nothing wrong with me. I'm F.I.N.E.!"
"I can see that..."
by 30yearoldvirgin January 20, 2009
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F.I.M.

Contrary to T.G.I.F.

F.I.M.
Fuck It's Monday!
F.I.M. already! I think I slept through Sunday.
by Suavemija May 11, 2009
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F I F A

acronym for Finish Inside Fall Asleep
Its much better to F I F A than to pull out.
by A d a m October 31, 2007
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f.i.s.h.

an acronym used by the army whenever something bad happens you can just remember fish

F- fuck
I- it
S- shit
H- happens
Pvt.#1- Hey dude Sgt. says we're all going to the field for 6 weeks

Pvt.#2- aww f.i.s.h.
by Spc. super man September 25, 2007
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