Somebody attending college or university. Students are in general fond of alcohol, marijuana, and sex, though that is definitely not all they think about.
Students come in three varieties: arts, corporate, and useful.
Arts students 'study' arts subjects. Note that they do not study art with the intention of creating it; rather, it is with the aim of appreciating it. With the odd exception like journalism (which is actually a pretty useful degree through which one can find meaningful employment) arts students give students in general a bad name. An arts degree is ridiculously easy to get (really, it is), so arts students do not have to do any form of study, or even attend lectures at all. Thus, they go around boozing, fucking, and bringing down the good name of serious students. They usually come from middle class backgrounds, and are merely attending university for the fun, as they will be able to secure a great job before they even get their degree due to mommy's connections.
The corporate student studies in areas such as law, commerce, and accountancy. They have a slightly greater need to attend lectures, but not so much as useful students. They keep the world economy running smoothly, and their degrees actually require some work and intelligence to obtain. They often come from a poor background, and wish to break free from a vicious cycle.
The useful student studies in an area such as science, engineering, or medicine. Degrees in these areas require quite a bit of work; as an added bonus, student must attend labs as well as lectures. In many cases, these students are motivated to make the world a better place, or to help others in a meaningful way. If not, then they simply wish to exercise their brains to the fullest.
After obtaining a degree, a student may opt to become a post-graduate, wherein they do some independant research under the supervision of a proffessor. Few students reach this stage, but those who do are often responsible for important new discoveries.
I am a student, studying microbiology, biochemistry, and immunotechnology because I want to find the cure for AIDS. Don't hate me because I attend college.