O͘ kan-á té tāu-iû

烏矸仔貯豆油

【解釋】黑瓶子裝醬油

【比喻】(1)深藏不露 (2)完全看不透、看不清楚，難以判斷

【英譯】(1)Profound/extraordinary (2)Difficult to understand or make a judgment