pull an emo

An occurance in which someone leaves the room in rage or sadness for dramatic effect, often not finishing the afforementioned conversation. Can also be applied to chat rooms.

I told her she had been ignoring her friends and she totally pulled an emo.

Me: Stop ignoring everyone, you're not the only person with problems
XxOneThousandTearsxX: SHUT UP! SCREW YOU! SCREW EVERYBODY! I HATE EVERYTHING!!!
XxOneThousandTearsxX has signed off.