When you install ocBanter, it creates a Private Topic between two random members with an insult inside of it (and a brief explanation). The insult is randomly selected from a list which also includes insults-comebacks. This list is configurable in the Admin Zone under Setup (Manage insults icon). You should separate the insults from comebacks by equal sign(=) and add any new insults on a new line (the same way this is done in Random quotes section). The insulted member has to try and make the right reply, if they succeed then they will be awarded some site points which is configurable under Setup > Configuration > Points options. The default insults are based off the classic computer game, Monkey Island.