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Jyutping ji6 zai2 dai2
Pinyin èr zǎi dǐ

Definitions (粵典–words.hk)
  1. 形容詞
    歇後語​:​死​跟​。​意指​基礎​差​,​實力​弱​,​只能​跟風​,​難以​獨當​一面​。​源自​話​事​啤​(​沙蟹​)​玩法​,​二仔​係​最細​,​若​底牌​係​二仔​,​難有​機會贏​,​只好​跟​其他​對手​落注​,​靜待​機會​。
    sandwich pun of which latter part is "follow until die" (being obligated to follow). Means someone whose foundations are weak, who is weak in strength, or who can only be a follower but not a pioneer. Originated from poker game Five Card Stud (Show Hand); when dealt a 2 (the lowest value) as the face-down card, the only course of action is to follow along what others are betting. Literally: dealt a 2 as face-down card
    • 我係屋邨仔出身,二仔底,唔勤力啲實聽乞食。
      我系屋邨仔出身,二仔底,唔勤力啲实听乞食。
      I came from public housing and was dealt a bad hand in life, so I have to work twice as hard or I'll be begging on the streets.
    • 業界龍頭已經開始劈價,我哋作為細公司,無辦法都要二仔底,死跟啦。
      业界龙头已经开始劈价,我哋作为细公司,无办法都要二仔底,死跟啦。
      The market leader has started cutting the prices; since we are only a small company in the business, we have no choice but follow suit.
Definitions (Kaifangcidian)
  1. 基礎差 – 基础差
  2. 孬本事
  3. 實力弱 – 实力弱
  4. 底子不好
  5. 水平不高
  6. 底子很差
  7. 索質很差 – 索质很差

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Jyutping ji6 zi2 dai2
Pinyin èr zǐ dǐ

Definitions (CC-CANTO)
  1. someone who is shameless and clingy/one who is incapable, not prepared
Examples (粵典–words.hk)
  1. Cantonese
    我系屋邨仔出身,二仔底,唔勤力啲实听乞食。
    我係屋邨仔出身,二仔底,唔勤力啲實聽乞食。
    • I came from public housing and was dealt a bad hand in life, so I have to work twice as hard or I'll be begging on the streets.
  2. Cantonese
    业界龙头已经开始劈价,我哋作为细公司,无办法都要二仔底,死跟啦。
    業界龍頭已經開始劈價,我哋作為細公司,無辦法都要二仔底,死跟啦。
    • The market leader has started cutting the prices; since we are only a small company in the business, we have no choice but follow suit.