1. mix up assemble without order or sense
  2. mix-up a mistake that results from taking one thing to be another
  3. mug up study intensively, as before an exam
  4. mugwump a neutral or uncommitted person, especially in politics
  5. mess up make a mess of, destroy or ruin
  6. mess-up something badly botched or muddled
  7. muck up soil with mud, muck, or mire
  8. Mugwump someone who bolted from the Republican Party during the U.S. presidential election of 1884
  9. gussy up put on special clothes to appear particularly appealing and attractive
  10. make up form or compose
  11. make-up the way in which someone or something is composed
  12. makeup the way in which someone or something is composed
  13. mucous of or secreting or covered with or resembling mucus
  14. mucus protective secretion of membranes lining internal organs
  15. mock up construct a model of
  16. mock-up full-scale working model of something built for study or testing or display
  17. cusp the point of transition when something happens or changes
  18. mixed-up perplexed by many conflicting situations or statements
  19. magus a member of the Zoroastrian priesthood of the ancient Persians
  20. duck soup any undertaking that is easy to do