Any Star Trek geek with a uniform that is obligated to serve under your beck and call so that they can bask in their own, bemusing glory of 'serving as an officer.'
A huge suck-up to any figure of authority in the army, Star Trek, or any other Sci-Fi movie with a commanding officer.
Also known as "Wesley Crusher"
You: Aw, shiz, I left my cat outside in the freezin rain.
Super Ensign: I can do that! *jumps out window and into yard, comes back with cat*
You: Thanks, ensign.
Super Ensign: *squee*