粤典 (words.hk)香港短语
極平嘅價錢，幾乎唔需要成本 (the absolute lowest possible price; the "rock-bottom price"; literally: cane dregs' price)
名詞用例
蔗渣噉嘅價錢，做出燒鵝噉嘅味道。
ze3 zaa1 gam2 ge3 gaa3 cin4, zou6 ceot1 siu1 ngo4 gam2 ge3 mei6 dou6.
At a very low price, it gives you a taste of surprise (literally "a taste like a roasted goose's").