粤典 (words.hk)香港词
01
指船喺水底嘅部份好深 ((of vessels) having a deep draught (distance between the waterline and the bottom of the hull))
形容詞02
引伸指舖頭或者中間人賺嘅差額好多；謀取暴利；係歇後語「航空母艦」嘅後半部 (commonly used figuratively to refer to shops or middlemen making an unreasonably high profit)
用例
佢哋食水好深㗎，一條手鍊成本先至嗰幾十蚊，但係就賣到千幾蚊一條。
keoi5 dei6 sik6 seoi2 hou2 sam1 gaa3, jat1 tiu4 sau2 lin2 sing4 bun2 sin1 zi3 go2 gei2 sap6 man1, daan6 hai6 zau6 maai6 dou3 cin1 gei2 man1 jat1 tiu4.
They make a huge profit margin. A bracelet costs well under a hundred for them, but they sell them up to over a thousand dollars each.