Big fat loud abrasive network administrators. Often obsessed with one computer platform or another. May or may not sport a Unix beard. May or may not know what the fuck they are talking about, on any given subject. You can tell by the loudness and how jingoist the statements are. The more belligerent, the less they actually know.
Hey, the big fat Thor thinks we should all switch to Mandrake Linux for security reasons. What a fucking Jackass.