Abstract: A standup flexible pouch having an asymmetrical shape includes a front wall, a back wall, and a gusset having a back gusset panel and a front gusset panel that is offset from the back gusset panel. The standup flexible pouch is formed from a sheet of flexible packaging material, and, when the pouch is filled, the front wall and the front gusset panel protrude outwardly from the back wall, forming a skull shape. The lower portion of the front wall and the front gusset panel of the gusset are sealed together along opposing miter gusset regions to further effect the skull shape of the pouch. The difference in length between the front wall and the back wall is directly proportional to the offset, the relationship of the gusset width to the pouch height is approximately one-to-one and the relationship of the pouch width to the gusset width is approximately two-to-one.