Do something fun and laugh it up.

做一些有意思的事情，尽情的开怀大笑。

youdao

Laugh it up!

笑起来！

youdao

Musashi: Laugh it up while you can. You don't have long!

武藏：趁还能笑就尽管笑吧。没多少时间了！

youdao

Many people will laugh this off, chalk it up to those crazy Scots, and move on.

FORBES: The Creation Of A Hashtag Is Not Your Decision

And if it comes up short, people are going to laugh, and they'll never get another chance.

FORBES: International

It's that they're set up to laugh through the very noise of the rhythm.

WSJ: Parsing a Playwright's Universal Language