Detention Whore
Someone who misbehaves in class just so they can get a little individual attention after school, perhaps because they have a crush on a particular teacher, or maybe for other reasons.
You: "There goes Joe again. That's the third time this week that Miss Doubledee has made him stay after school."
Me: "Yeah, he's such a detention whore!"
Me: "Yeah, he's such a detention whore!"