world with only two people (usually refers to a romantic couple)
romantic couple's world
Definitions (粵典–words.hk)
名詞
一對愛侶單獨相處嘅機會 romantic time which two lovers enjoy together solely; literally: world of two people
兩夫妻享受二人世界。
两夫妻享受二人世界。
loeng5 fu1 cai1 hoeng2 sau6 ji6 jan4 sai3 gaai3. A couple enjoys the time being together without disturbance.
Definitions (Wiktionary)
noun
world of two people (i.e. a couple); each other's company (syn.) 兩人世界, 两人世界
verb, of a couple
to enjoy the exclusive world of two people (without the hassle of children); to enjoy each other's company; to spend quality time with each other