to secretly work in a second job without telling one's boss
Definitions (粵典–words.hk)
動詞、俚語
喺做正職嗰間公司以外,私底下幫其他地方做兼職 to secretly work part-time or freelance outside of one's full-time job; to moonlight
佢秘撈好多瓣,應該幾好揾。
佢秘捞好多瓣,应该几好揾。
keoi5 bei3 lou1 hou2 do1 faan6, jing1 goi1 gei2 hou2 wan2. He does quite a lot of moonlighting which should guarantee him a good income.
Definitions (Wiktionary)
verb, Cantonese, slang
to moonlight; to have a second job secretly