A high school student who tots a sleeping bag, a backpack, some geometry homework, and an information packet bearing his or her name for an overnight stay in a college dorm. He or she is generally retrieved, much like a textbook that you don't want to read, from the library or other public building on campus.
Though there are no late fees, one must generally return one's prospie after 24 hours.
Hey, has anyone seen my prospie?