shittigating
To start an argument between individuals, chat rooms, sites, etc. To bring up old 'news' and cause a major reaction.
She came into the chatroom and started shittigating between the n00bs and vets.
Shittigator
A person who instigates an argument between other individuals, chat rooms, sites, etc. A person who brings up old 'news' to get people in trouble.
Marco is such a shittigator, he got me and Tom banned from chat because of some rumour from months ago.