supersize

verb -sizes, -sizing or -sized (tr)
  1. to increase the size of (something, such as a standard portion of food)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for supersize

Contemporary Examples of supersize

  • Crafting humor for supersize egos can be a perilous, high-wire act.

    The Daily Beast logo
    How Funny Is Obama?

    Sandra McElwaine

    January 30, 2009