A
drug dealer, usually in this case a student at a college or university that is dealing in addition to their
studies. However a Chemist on campus may not necessarily be a student, possibly just someone who hangs around
targeting students.
Person A : 'Hey bro do you know if there is a
chemist on campus? I need to
reimburse my supply as I got high last night with my cat and
used up all my skunk'
Person B : 'I think that Johnny from our algebra class is, you should go and ask him'