A personal drink blender system with an interlocking ribbed disposable container for permitting a user to dispose of the cup and its constituent parts after a single use. The drink blender system with an interlocking ribbed disposable container includes a cup defining an interior for receiving the contents of the drink. The upper end of the cup has an opening into the interior. The exterior lower end of the cup is inverted and ribbed to allow for an interlocking with the wall of the blender base to hold the cup in place during mixing. A mixing apparatus integrally formed with the cup as a single unit. The mixing apparatus is mounted on the lower end of the cup and extends below and beyond the cup upward into the interior of the cup. The cup is formed of a plastic material and the 6-tooth driver mate is also made of a plastic material. The leading portion and the blade are made of a metal material, however the material does not detract from the cup's disposability. The driver assembly for driving the mixing apparatus by permitting the 6-tooth driver mate to be nested onto the driver assembly to cause the mixing apparatus to rotate on its axes.