吃醋

吃醋	chī cù	to feel jealous (esp. because of a rival in love or affection)
吃	chī	to eat; to consume / to eat at (a cafeteria etc) / to eradicate; to destroy / to absorb / to suffer (shock, injury, defeat etc)
吃	chī	variant of 吃
醋	cù	vinegar / jealousy (in love rivalry)