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Another way to say 'fuck' and bastardization of the word fsck. Fjsk is strictly for use in keyboard-lanuages (I suppose you could say "fuh-jisk") and is usually used around unix-geeks who might think you're talking about the command or if you can't reach the 'c' key.
Noob: lol i just pwnd you with my lightning gun
Noob2: fjsk your mom!

Man: Fsjk! I just gave some random guy my credit card number!

Programmer: Fjsk! I forgot to add a goddamn semicolon to my script!

Random kid: fjsk yuo!
by Tiko March 20, 2004
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