slip up

slip up  {v. phr.}
To make a mistake.
Someone at the bank slipped up. There are only 48 pennies in this 50c roll of coins.
If he hadn't slipped up on the last questions, his score on the test would have been perfect.
Categories: verb

An client error occurred: Error calling GET https://www.googleapis.com/youtube/v3/search?part=id%2Csnippet&q=%22slip+up%22&maxResults=4&videoEmbeddable=true&videoSyndicated=true&safeSearch=strict&type=video&key=AIzaSyCfLRuAZZNAQm6a5uDzgY-Tt668bxsppCs: (403) The request cannot be completed because you have exceeded your <a href="/youtube/v3/getting-started#quota">quota</a>.