It stands for Free Of Charge. Most commonly used when talking about shoplifting.
I went to the store and got a pack of smokes FOC.
by iden_elite October 22, 2003
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Ok I totally made this up but you know the term fob? or F.O.B? well we use it a lot at my school (and its wrong, i know) to describe some of my fellow orchestra members here at plano senior high, and well, i thought it was time for the orchestra minority, aka the whities, to have a term. So F. O. C or foc means "Fresh off the cruise." Like they're really white and affluent and they go on cruises all the time? Yeah like everyone I know is like that. And they're republican.
"Hey Brad Booth, you're such a foc. Focking focker."
by Angelica December 5, 2003
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A short for a "Star Wars: Empire at War - Forces of Corruption", which is just an expansion pack for an original game
A: are you on FoC or EaW?
B: FoC
A: FoC you! go and run EaW, FoC sucks...
by Am I Fluffy?! June 9, 2009
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Fizz O'Clock
Most commonly used when tolerance levels of work/weather/hangover require justification of a glass/bottle of champange (or Australian equivilent)
It's foc for me today already.

Want to join me for foc?
by Larzie January 10, 2006
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Pronounced "fock," this is an abbreviation for the cheap brand of vodka called Five O'clock. This abbreviation is doubly useful for describing the taste of Five O'clock as it sounds similar to fuck.
I see you bought FOC again. That stuff tastes FOC-ing awful.
by Oh Hamburgers March 24, 2011
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(noun)
Fear of Cock. Placed into a state of shock or fear when introduced to a penis.
He whipped that thing out, but I have FOC so instead of giving him a blowjob, I ran away.
by lauren rocket July 17, 2006
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