有口難言 [－－难－]

Jyutping jau5 hau2 naan4 jin4
Pinyin yǒu kǒu nán yán

Definitions (CC-CANTO)
  1. to be too embarrassed to mention something; to find it hard to speak about something
Definitions (粵典–words.hk)
  1. 語句
    有​説​話​不敢​講​出口​，​或者​怕​尷尬​又​唔​知點​表達​先好​；​難以​啓​齒
    to find it difficult or embarrassing to bring up a matter
Definitions (Wiktionary)
  1. phrase, idiomatic
    cannot bring oneself to mention something; to find it hard or embarrassing to bring up a matter
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）