laughing matter

A funny happening; a silly situation. — Usually used with "no".
John's failing the test is no laughing matter!
We were amused when our neighbor's cat had five kittens, but when our own cat had six kittens it was no laughing matter.
Categories: noun

An client error occurred: Error calling GET https://www.googleapis.com/youtube/v3/search?part=id%2Csnippet&q=%22laughing+matter%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>.