When someone is being extremeley anti-social.Often this person does not go anywhere because they are spending an abnormal amount of time with their hundreds of cousins and goin to 50th birthday parties or just lying in there wee gypsy house in trentagh beacause theyre "wile tired man".The person may spend an large amount of time at "Norahs" also.
Chugger is a combination of the words charity and mugger. A charity mugger is a generally a student or young adult (paid) volunteer who aggressively asks you to fill in a questionnaire for their particular cause be it Concern, Greenpeace, Baby Seal Clubbers. Generally chuggers don't take no for an answer so it is better to never make eye contact with them and tell them to feck off if they even open their mouths. In the movie Airplane you can see an example of how to deal with chuggers effectively.