A Mafu is generally term used for describing someone who is severly lacking in the common sence department, and someone who actualy surprises
even the stupidest of
people with how little that person knows about even the most mundane and well known things in
life. For example a particualar mafu once tried to offend someone by saying "ha ha you sit down when you piss and it comes out your ass, just like a woman"
Insults also include : "chobster", "testical face"
another
spectacular example of a mafu is someone who once
gamed for 3 hours straight on a cebeebees
website