WeChat, China's most popular messaging and mobile payment app, added new emojis to its existing set on November 18. From left to right, the new emojis pictured above depict boredom, awesome, let me see, sigh, hurt and broken.

Among these new emojis, "broken" i.e. "裂开 liè kāi" or "split-off" is straight from Chinese online slang, which could be used to signal frustration. 

The new emojis have become a trending topic on Chinese microblogging platform Weibo, sparking discussions about meanings behind these different faces.

Some netizens think the new emojis are a perfect illustration of a laborer's day, while some hope WeChat can continue to introduce new emojis, such as a split dog.

As the proportion of those born after 1995 expands online, Generation Z has injected new vitality into the internet and a driving force. They are proficient in online language, preferring to use memes to express their emotions, and creating new definitions for them.

The internet lingo once dominated by the post-80s and 90s is being overturned. And learning the new meaning of emojis has become a "compulsory course" for the older generation.