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Jyutping lou1 sai3 gaai3
Pinyin lāo shì jiè

Definitions (CC-CANTO)
  1. (slang) to make a living; to earn a living (usually a relatively poor one, muddling along / living hand to mouth); profiteering; to make a living through crime
Definitions (粵典–words.hk)
  1. 動詞
    謀生​、​闖​江湖​;​有時​指用​不法​手段​揾​錢​,​近似​做​世界
    to make a living; sometimes means to earn money through tricks or crime. Literally: to do the world
    • 撈世界要醒目,一於當玩把戲。
      捞世界要醒目,一于当玩把戏。
      lou1 sai3 gaai3 jiu3 sing2 muk6, jat1 jyu1 dong1 waan2 baa2 hei3.
      To make money through tricks have to be smart, just like playing a game.
  2. 近義詞
    做世界、揾世界
Definitions (Kaifangcidian)
  1. 混日子
  2. 謀生 – 谋生
  3. 混事
  4. 闖江湖 – 闯江湖
Examples (粵典–words.hk)
  1. Cantonese
    捞世界要醒目,一于当玩把戏。
    撈世界要醒目,一於當玩把戲。
    lou1 sai3 gaai3 jiu3 sing2 muk6, jat1 jyu1 dong1 waan2 baa2 hei3.
    • To make money through tricks have to be smart, just like playing a game.