An idiom is a phrase or saying that usually holds a special meaning different than what the words themselves might imply.

所谓习语，就是指某些词组或者说法，它们拥有特殊含义，与字面意思不同。

youdao

As an idiom, we use this phrase to indicate that someone is not alert enough when something critical is taking place, or not paying full attention to an important situation.

做为一条习语，我们通常用这条短评来指那些当一些关键的事发生时不够警觉或者对重要的情况没有投入全部注意力的人。

youdao

The advertisers use brand, idiom, and phrase, etc, to form pun skillfully.

广告商巧妙地运用品牌、成语、习语等构成双关语以增加宣传效果。

youdao

Like most true stories, the beginning isn't tidy, but we'll start in the 1920s when the idiom top of the world was first used as an advertising catch phrase.

NPR: Blues Song Is a Decades-Long Music Lesson

At age 87, he easily had the most modern ears in the room, and took her to task for singing a phrase with a flatted fifth in it a cliche in the jazz idiom for many decades.

NPR: Diana Krall: 'From This Moment On'