fsck, tar - Unix commands. Fsck is often used in the place of that other 'f' word due to their similarity. In this case it seems to be a pun on "tarred and feathered", something they used to do to people right before throwing them out of town.
SegaNet - Sega's now defunct online gaming service.
Actually, at this moment I do not, nor have I ever worked for Sega.
largo_3: Dom! You're anal about grammar, what do you say you look at these scripts I have! Dom: Uh... sure, why not?
(some days later)
largo_3: Dom! I put you in my comic!