粵典 (words.hk)香港短語
仲係學生。多數用嚟貶低人哋，認為對方唔成熟、未見過世面。 (still young and immature; literally: still in school uniform)
語句用例
校服都未除教我做嘢？我食鹽多過你食米呀！
haau6 fuk6 dou1 mei6 ceoi4 gaau3 ngo5 zou6 je5? ngo5 sik6 jim4 do1 gwo3 nei5 sik6 mai5 aa3!
Don't tell me what to do, inexperienced person; I've got more experience than you!