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Jyutping luk6 bat1 daap3 deoi3
Pinyin liù bù dá duì

Definitions (Wiktionary)
  1. phrase, Yangzhou, idiomatic
    the answer is irrelevant to the question; a square peg cannot fit into a round hole
    (syn.) 六不答對, 驢脣不對馬嘴, 牛頭不對馬嘴, 驢頭不對馬嘴, 牛頭唔搭馬嘴, 話三唔話兩