(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)
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.