水飯房 [－饭－]

Jyutping seoi2 faan6 fong4
Pinyin shuǐ fàn fáng

Definitions (粵典–words.hk)
  1. 名詞
    獨立​犯人​監​倉​嘅​俗​稱​（​量​詞​：​間​）
    nickname of prison cell for a single inmate; literally: water and rice room

水飯房 [－饭－]

Jyutping seoi2 faan6 fong4
Pinyin shui3fǎn fáng

Definitions (CC-CANTO)
  1. the punishment block in prison [colloquial]