Slip up

Pronunciation: /ˈsɫɪp ˈəp/

Slip up (verb)

  1. To make a small error, often by accident, especially when you are trying to do something carefully.
  2. To do worse than expected for a short time, usually because of a moment of poor judgement or control.

Examples

  • I made a small mistake during the test.
  • She made a small mistake while copying the notes.