Corey (or anyone else for that matter) is someone commonly called a "Lobster" when he is acting stupid, weird or annoying.
Corey: *Makes a weird sound in class*
Student 1: what was that?
Student 2: He's calling for a female Lobster to mate with.
Student 3: Corey's a Lobster!
by Lee Pong May 8, 2009
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