What's your favorite military "nickname" or "call sign"?

It's no secret, we're big on nicknames in the military, and there's some really great ones out there... so, what's your favorite?  It could be a nickname that you had, or someone you know, from a move or tv show; it could be a nickname for a rank, base/location, career field, position/title, weapon system, piece of gear, personnel, or just about anything else under the sun. Perhaps it was a nickname for a mascot, civilian personnel, military family member, or something altogether different that has to do w/ the military, military life, or life from the military perspective.  Well, this should be an absolute blast folks; so, feel free to share any related info, facts, photos, links, historical context, or just plain entertaining sea stories.  The idea here is simple, to share fun and interesting info and to learn a thing or two in the process; now let's get this thing started, so pull up a keyboard, and... see you all in the discussion threads!