沉底 [－－]

Jyutping cam4 dai2
Pinyin chén dǐ

Definitions (粵典–words.hk)
  1. 動詞
    討論區​或者​通訊​軟件​入面​，​一段​留言​因為​冇​人​回應​所以​跌​咗​落​去​目錄​下面​，​更加​冇​機會​俾​人​睇​到
    fall out of attention; literally: sink to the bottom
    • 你篇文晨早沉咗底，再推都係冇人理你㗎喇
      你篇文晨早沉咗底，再推都系冇人理你㗎喇
      Your post sank straight away. Even if you kept commenting, nobody would care.

沉底 [－－]

Jyutping zam6 dai2
Pinyin chén dǐ

Definitions (CC-CANTO)
  1. (verb) sink to the bottom; sunken