醋罐子 (cùguànzi): a jealous person

Meanings

Tā shì gè dà cùguànzi, lǎogōng gēn nǚ tóngshì shuō jù huà dōu yào chǎo.

She's a jealous one — her husband just saying hi to a female colleague starts a fight.

Nǐ yòu bú shì cùguànzi, zhè diǎn shì yòng de zháo shēngqì ma?

You're not usually the jealous type. Is this really worth getting upset over?

culture

In Chinese, 吃醋 (chīcù, "eat vinegar") means to be jealous in romance. 醋罐子 extends the metaphor — a person so jealous they're a whole jar of vinegar.

醋 cù

罐 guàn

子 zǐ