As a student at a university, "gearbox" could refer to a variety of things depending on the context. It could be a term used in engineering or mechanical courses to refer to a device that transmits mechanical power from one component to another. It could also be a metaphorical term used to describe the process of shifting or adjusting one's mindset or approach to a situation. Additionally, "gearbox" could also be the name of a student organization, club, or project at the university.