Someone mentioned a capt.'s gig--a small motorboat on every Navy ship. The Navy also refers to something called "gig line." On a button-up shirt, the seam that forms along the edge of the buttons makes a straight line to the zipper of the pants so that when the shirt is tucked in, the seam of the button-edge is even with the zipper. This is your gig line. On ship it is customary to send new kids fresh out of school or boot camp on an errand to fetch 50 feet of gig line. They'll send the poor guy all over the ship for 2 hours--all day if it's a big ship. It's the oldest joke in the Navy (along with fetching sound-powered phone batteries) but some guy falls for it every time! You know who the geniuses are right off the bat.