Loutish behaviour is a term used to describe rude, obnoxious and aggressive behaviour. Yobbery and HOOLIGANISM are two terms that are often used to describe this type of behaviour. Yobbery is defined as rowdy or boisterous behaviour, while HOOLIGANISM is defined as violent and destructive behaviour. Both terms are used to describe loutish behaviour, which can range from minor disturbances to more serious criminal activity.