fscking
 /fus'?king/, /eff'?seek?ing/, adj.

    [Usenet; very common] Fucking, in the expletive sense (it refers to the
    Unix filesystem-repair command fsck(8), of which it can be said that if you
    have to use it at all you are having a bad day). Originated on scary devil
    monastery and the bofh.net newsgroups, but became much more widespread
    following the passage of CDA. Also occasionally seen in the variant ?What
    the fsck??