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The mustang principle is very simple, if one is too purchase an extremly expensive car, phone, computer, etc one would avoid the mustang, razr, alienware, etc, because said products are what everyone else gets, defeating the purpose of spending the extra money to get something special.
According to the mustang principle, ford mustangs are the yellow magnet ribbon of expensive cars.
by Mason "Gyver" Lofton March 02, 2006
Happy St. Patties Day!