In 8th grade(i'm in 10th now) we had a german club for my old school. For extra credit, there was an option to work on the club's website. Only 2 other people and me did it. So 4 people were working on it, including our german teacher. We all had different assignments for the webpage. Since I was the best at HTML my job was to tweak the HTML code of the webpages . Since all of us were(and still are) big beatie boys fans, so they started calling me, tweak master mike. So shortened it is tweakmm