[------针]

Jyutping neoi5 jan4 sam1 , hoi2 dai2 zam1
Pinyin nǚ rén xīn , hǎi dǐ zhēn

Definitions (Wiktionary)
  1. proverb
    a woman's thoughts are impossible to fathom

[------针]

Jyutping neoi5 jan2 sam1 hoi2 dai2 zam1
Pinyin nǚ rén xīn , hǎi dǐ zhēn

Definitions (粵典–words.hk)
  1. 語句
    海好​大​、​好深​,​要​喺​海底​撈​支針​出​嚟​,​簡直​難到​飛起​;​呢​句​嘢​嘅​意思​,​就​係​女性​諗​法同​性情​變幻​無常​,​好難​捉摸
    women are fickle and hard to understand; literally 'a woman's heart (is like) a needle at the bottom of the sea'