How do you define a troll?

A troll is basically the same as your school yard bully mentality. They seek attention in any way they can get it by offending or pushing others buttons and positive or negative attention doesn't matter they just want any and all of it. Only difference is online they can hide behind a screen and be as offensive as possible with no fear.

I thought it was funny how people let Asch bother them the 2nd time. The first time I understood it. And he pissed even me off with the whole "suicide" trip. But i shut him up with that crap.

Basically someone who does or says something to get a certain emotional(Mostly vocal) effect out of someone or their specific target. They usually say something completely out of line, ludicrous or stupid. Though there are some legitimately funny one's, But their are ten bad ones for every good one and that's on a good day. Overall though, I find them as nuisances.