One with SMS (Short Man Syndrome), when mixed with alcohol an Arthur has the tendancy to become violent. Arthurs tend to act tougher than they are to appear to an audience as ferocious. Arthur's are typically lazy but loud mouthed. They talk with their hands a lot and say stupid things.
Guy 1: Did you see James at the partylast night, he was acting like an ass because he was drunk but he was saying some pretty stupid things.
Guy 2: Oh so it sounds like he was being a total Arthur then.
Arthur is an idiot dude. He likes to ditch his friends when they are going for a ride so that he can get on a train after eating Hungry Jack's. He can be quite annoying and is always talking about cannibalism and murder. He also doesn't invite his friend Toby to his birthday party because "There were only 12 beds and 3 people is too many for that."