樂(lè)不思蜀
lè bù sī shǔ
Too happy to think of one's home

樂(lè) means happy, 不 means not, 思 means miss or think of, 蜀 is the name of the Shu kingdom. People use this idiom to describe those who are having a good time and forget about home.

Literal meaning: too happy to think of one's home.

Explanation: to describe those who indulge themselves and forget about their home and their duties.

E.g

他到了國(guó)外就樂(lè)不思蜀，短期內(nèi)根本不愿意回家。
tā dào le guó wài jiù lè bù sī shǔ，duǎn qī nèi gēn běn bù yuàn yì huí jiā 。
He was too happy to think of his home when he went abroad. He didn't want to go back home in short time.

Source: mandarinai.com
Editor: wanwan