Hmm, the other kid took his lunchbox? That's aggravated robbery. The other kid is verbally taunting and constantly pursues? That's harassment.
Some of the worst bullying I experienced was in college.
While it didn't happen to me, one of my pseudo friends (who I later found out was bipolar) had a roommate who he and one of my former roommates (who was a 4.0 student who won ethics awards) really abused.
They would cut the parts out of his books that he needed, empty out his shampoo bottles and fill it with crud, cut holes in his pants, etc. They really wanted to harass him to the point he dropped out. That was the goal of their college bullying, I think.
So, bullying doesn't stop in elementary and high school.