Any person, male or female, who has gone without shaving, shaping or trimming the areas they normally shave for such an extended period of time that they could be mistaken for Big Bird's best friend.
I went a whole week without shaving once. Producers from Sesame Street were started calling me and asking why I hadn't shown up to work. I was a real scruffalufagus.
Scruffallo is a disease caused by bad-aids. It is passed from person to person via the elbow, it is deadly and usually involves dying. Side effects of said "death" is not living, not breathing, not pumping blood and not playing cricket