Short for the term fuck commonly used in IRC
by Urban Dictionary October 29, 2002
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Abbreviation for fck or fuck. Because fck got censored in Maplestory.
Why the fk did Nexon censor ***?
Fk Nexon.
Who the fk plays Maplestory?
In the old days we could've said ***.
by TellaMyBella June 13, 2012
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Foreign Keyboard Syndrome. The feeling one gets from using a keyboard that is not similar to theirs.
Guy 1: "Why are you typing so slow?"
Guy 2: "Dude, it's FKS!"
by WeaselII March 10, 2009
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Fat Kids. Hardcore Gang based in Las Vegas, Nevada. They have been known to mark there terroritory with graffiti and are very violent. They are seen wearing Black Bandannas out the back left pocket.
FK is a Hardcore Gang is Las Vegas.
by Iquestion January 23, 2011
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A more recent addition to the numerous abreviations to the English language used in AIM / MSN / online gaming speak (or 1337 as it has been dubbed).

Stands for 'fuck knows'.
fks how he made that shot, must be a hax0r
by daveeee July 12, 2004
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"Fucking Kiddie Site" ...used to describe any website oriented toward kids. More specifically, any site with content directed toward people deemed younger or less mature than the person calling it "FKS".
That FKS is full of noobs and stupid kid stuff.
by Uhhh-Clem November 30, 2006
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