mix up

mix up idiom
  1. Confuse, confound, as in His explanation just mixed me up even more, or I always mix up the twins. [c. 1800]
  2. Involve or implicate. This usage is usually put in the passive, as in He got mixed up with the wrong crowd. [Mid-1800s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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