fig. those who spend their monthly income even before they earn their next salary (slang)
Definitions (粵典–words.hk)
名詞
每個月尾都用晒所有收入嘅人(量詞:個) person who lives from one paycheck to another
而家啲後生個個都係月光族,以前啲人邊有咁大洗。
而家啲后生个个都系月光族,以前啲人边有咁大洗。
ji4 gaa1 di1 hau6 saang1 go3 go3 dou1 hai6 jyut6 gwong1 zuk6, ji5 cin4 di1 jan4 bin1 jau5 gam3 daai6 sai2. Too many young ones are living by their paycheck nowadays. In our time there was no such thing as financial recklessness.
Definitions (Wiktionary)
phrase, idiomatic
people who live from paycheck to paycheck