mark up

mark up idiom
  1. Deface by drawing, cutting, or another means of covering something with marks. For example, John was punished for marking up his desk, or These shoes really mark up the floor.
  2. Raise the price of something, as in This small shop marks up its merchandise much more than department stores do. [Second half of 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.

Comments
Improve this definition.
Do you have more to add? Share your linguistic knowledge or observation.
/Register to save your comments.