九唔搭八 (gau2 m4 daap3 baat3) — completely nonsensical; give an irrelevant answer in Cantonese
gauˊ²九mˎ₄唔daap˗₃搭baat˗₃八Mandarin Pinyin: jiu3 wu2 da1 ba1
Meaning of 九唔搭八
nouncompletely nonsensical; give an irrelevant answer
nounnine doesn't follow eight
noun(slang) someone is completely illogical, ludicrous and nonsensical; irrelevant, off topic