to keep all the benefits to oneself; to not miss out on even the tiniest of any advantages; the act of mixing the sauce of the dish with the rice (Chinese way of eating rice with a dish); describes a very tasty dish
Definitions (粵典–words.hk)
動詞、形容詞
用盡一切可以用嘅嘢 to use up all that can be used; literally: nothing left, not even the sauce
睇電視劇睇到汁都撈埋。
睇电视剧睇到汁都捞埋。
tai2 din6 si6 kek6 tai2 dou3 zap1 dou1 lou1 maai4. to watch a TV programme all the way to the end (including the closing credits sequence).