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Roommates in a college dorm room who don't participate in anything that the rest of the hall/suite does. They are often found in their rooms with the door closed. They do, however, choose to make themselves known whenever there is a problem with another resident or the dorm itself, and they will complain and cause others to get in trouble. You do not want to be them.
Danielle: Hey, do you want to go out tonight?

Charles: No, thanks, I'm going to stay home and do nothing.
Danielle: Aww, don't be such a StepJess!
by ghidlenf May 07, 2011
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