Mess with

Pronunciation: /ˈmɛs ˈwɪð/

Mess with (verb)

  1. To change something in a way that causes problems or makes it less effective.
  2. To touch or adjust something secretly or carelessly, so it does not work properly.
  3. To bother someone repeatedly, often to make them feel upset or uncomfortable.

Examples

  • She messes with plans before she commits to them.
  • They mess with plans when they feel unsure.