「蔗渣噉嘅價錢 / 蔗渣咁嘅價錢」

(pos:名詞)(label:俚語)
<explanation>
yue:極平嘅價錢，幾乎唔需要成本
eng:the absolute lowest possible price; the "rock-bottom price"; literally: cane dregs' price
<eg>
yue: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.)
eng:At a very low price, it gives you a taste of surprise (literally "a taste like a roasted goose's").