Expelled from any college/school/high school/university etc... beacause you did somthing of little significance to annoy/hinder another. Although this act had little to no effect on the person they told somenone of higher authority and got you expelled. The name comes from a kid called "Nick Corell" who will tell higher authority if you so much as look at him funny, this often gets you expelled.
Corell+expelled= corelled.