不摸頭 [－－头]

Jyutping bat1 mo2 tau4
Pinyin bù mō tóu

Definitions (CC-CEDICT)
  1. not acquainted with the situation
  2. not up on things
Definitions (Wiktionary)
  1. verb, colloquial
    to have no idea; to have no clue
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）