Meaning:

This idiom sounds like “barbeque,” but means“finished.” It stems from a game blogger on Douyin, who released videos with his own words in electro-voice. His electro-voice dubbing “完了芭比Q了 ...“ is very brainwashing, and is humorously used by Chinese netizens to express a very powerless and shocked meaning, usually in the occurrence of some embarrassing or laughable things.

Example:

A: 你在忙着找什么东西吗

Nǐ zài mángzhe zhǎo shénme dōngxi má？

Are you busy looking for something?

B: 我昨天晚上画了张图表，不知道放哪里了。芭比Q了，过几分钟开会要用的。

Wǒ zuótiān wǎnshàng huà le zhàng túbiǎo，bùzhīdào fàng nǎlǐ le。 bā bǐ Q le，guò jǐ fènzhōng kāihuì yào yòng de。

I drew a chart last night and I don’t know where I put it. I’m finished — it’s for a meeting in a few minutes.