"Gonk" was a droid in Star Wars, and my PC in college (a big heavy tower with more steel in it's chassis than four or five modern PC's) bore an all-too-close resemblance to that droid - as a result, we ended up naming it "gonk" at some point. When I needed a user name for an online forum account (ShackNews, although back then it was still ShugaShack), I borrowed my old (by then long gone) PC.